Wave futures now: the novel Korg Wavestate synthesizer

Korg Wavestate (photo by Korg)

Wave sequencing exploded into public consciousness with the Korg Wavestation at the beginning of the 1990s.

The synth engine's core concept was innovative and powerful enough for this type of synthesis to survive well into the 21st century - not only as software synth re-incarnations, but also as key parts of flagship workstations like the OASYS and Kronos.

There are many reviews and demos out there of the new Wavestate synth, so here one would focus on the specifics of wave sequencing (as there are occasional misunderstandings in various forums or different digital waveform-based synthesis methods are conflated), and would highlight the central idea that truly makes the Wavestate a stunning development in wave sequencing synthesis.

The synthesis method pioneered by the Wavestation is not to be confused with mere memory-stored waveforms-based synthesis, where digital samples are just played back from memory as the oscillator part of the synthesis chain. In this sense, "romplers", as some call these, are very far from wave sequencing. Similarly, the PPG Wave-like revolutionary wavetable synthesis is eminently different, in that case we have snippets (e.g. single-cycle periods) of waveforms stored in adjancent tables of samples, and the synths is sweeping across these tables in a cyclical fashion.

The crux of the wave sequence-based synthesis is that waveforms played back from memory can be, well, sequenced: one can define consecutive time slots during which different digital waveforms' samples are played back. One can have cross-fade between these, again with pre-defined duration - or no cross-fades at all, i.e. the different waveforms abruptly transition from one to another.

Even if, absurdly, one has never heard wave sequenced sounds by 2020, it is perhaps easy to imagine the sonic possibilities.

If one wishes long evolving pads, then one can use in the wave sequences long cross-fade times with atmospheric sounds used as individual "slots" in the wave sequence. The result can be a moving, changing, evolving sound that is eminently different from other synthesis methods' results.

If one wishes to achieve rhythmic sounds with lots of changes and even full-blown grooves, then one can assemble a wave sequence with the desired timings, loops, and no cross-fades at all, for example.

Transitioning rapidly between components of the wave sequence can lead to phenomenal spectral movements, especially if one can alter the individual parts of the wave sequence.

The possibilities are endless... and Wavestation has rightly become one of the most unique-sounding and characteristic synths of recent decades, with instantly recognisable sounds.

In OASYS and in the Kronos HD-1 engine one could have the joy of finding the full wave sequencing capabilites of the mighty Wavestation, with some extra features added in - including user interface aspects, whereby managing wave sequences has become sublime via large touch screens.

Then comes the Wavestate...

If one has heard and/or grasped the essence and the possibilities of wave sequencing synthesis, then one can perhaps imagine what happens when KORG decides to add individual real-time control to all key parameters of wave sequences, structures them into multiple so-called lanes - and even adds randomisation capabilities.

Not only one has now real-time control via knobs in order to on-the-fly alter the wave sequences' component parts, but there are deep modulation possibilities for these parameters.

Well, with the many examples provided on SoundCloud, one doesn't have to merely imagine the resulting sonic power.

Thus, Wave Sequencing 2.0 is not an overstatement.

The cherry, well, a whole orchard on the cake is that Wavestate has numerous classic and digitally modeled filters (incl. those from the legendary MS-20 and Polysix), up to 14 simultaneous effects (incl. the perhaps most realistic and astonishing reverb, the O-Verb available on Oasys and the later Kronos), and even vector synthesis (via a joystick that we have seen on previous flagship models).

Latter allows real-time control between 4 layers of sounds, and the movements of the joystick can be captured and reproduced as part of the synth patch.

There are gigabytes of on-board waveforms, including the full Wavestation offering... so user can spend quasi-infinite amounts of time creating wave sequence Universes...

Photo: Korg

Shaping sounds... with good KARMA

One doesn't normally start a music technology-related piece with a (for all the wrong reasons) alleged and memorable expression from a former president... However, KARMA is perhaps one of the most "misunderestimated" technological innovations out there...

Some have asked recently in some synth groups whether KARMA is basically an arpeggiator of sorts. Well, that might be just one ice crystal on the tip of an impressive iceberg... and as KARMA has many modes, generated effects, and quite some depth of parameters, a number of its capabilities are exemplified below with some techie elements, too.

Korg KARMA workstation

KARMA (Kay Algorithmic Realtime Music Architecture, named after its inventor Stephen Kay) has had its debut on the Korg Karma music workstation. Latter has been used by Peter Gabriel, Rick Wakeman, Vangelis, Herbie Hancock, to name just a few...

Subsequently the technology was incorporated in flagship workstations like the Korg M3, OASYS, Kronos, but also as separate software app that can be used with e.g. the Yamaha Motif series synths, too.

Well, while it can be used as an extremely powerful and quite unprecedented generator of musical accompaniments, it has modes (or in proper KARMA terminology, generated effects or GEs) that possess some really dazzling capabilities.

True, it generates MIDI events basically - but  one must not think of MIDI events just in terms of musical notes. KARMA can actually control many aspects of the sound, hence it can actually be a powerful sound design tool, too. It is at its most powerful when integrated closely with the synth, so that coupling between the user interface (think of M3 or Kronos's panel of sliders and switches) and what it controls is tight.

Many of its GEs can create complex musical sequences whilst monitoring what one plays. The myriad parameters, which one can have real-time access to, elevate the resulting melodic and percussive lines far beyond the stereotypical and often robotic arpeggiator outputs. Real-time control of note randomisation, swing, generated pattern complexity etc. can give the resulting sequences a surprisingly human feel.

The fact that vast sets of parameters can be organised into so-called "scenes", and transitions between these can be done instantly while playing, means that user can build up different sections with helpful assistance from KARMA.

This clip shows some examples by Stephen Kay, with KARMA scenes and controls on the Korg M3. Some  subsequent clips are taken from the net, but unashamedly from one's own tracks, too, where at least one knows exactly what was done with KARMA settings and why...

The areas where KARMA really starts to cross into a whole new realm is where its GEs create realistic imitations of how some instruments are played. Hammered dulcimer can be played with stunningly realistic action, as a section of this clip illustrates on the Kronos workstation - and one has fine control over how that hammer action shapes and decorates the resulting sound.

Similarly. KARMA can imitate strumming and specific ways of playing ethnic instruments with typical phrasings - from guitars to sitar. There aren't many things as annoying as a sitar or a koto that sounds like a keyboardist played it on a keyboard with some sitar or koto samples... KARMA's assistance in performing realistic triggering of notes and phrases of even fiendishly difficult instruments can be quite surprising.

However, one is very free to apply such KARMA modes or GEs to eminently different things - try run a "gong roll" effect on the decay parts of a piano sound for instance, stand back and admire what happens - a pulsating ambient texture unfolds.

The harmonic "modes" or GEs are hard to describe until one hears the effects. Not only they create chord structures, but also they can subtly alter and move notes, creating shifting textures. The exemplified section of this track was created with a  modified Korg M3 combi, which uses subtle KARMA movements that slowly shift and decorate the ambient music-like textures.

Often the MIDI events are so rapid and subtle, that they do not actually fully trigger notes - but their effect on patches can be quite interesting. Some of the so-called "pad holder" GEs used with, one can guess, pad-type sounds can really move and blend things, creating interesting sonic textures.

One can unleash KARMA effects on patches that benefit from gated GEs and such, the MIDI control events ending up moving and shifting the sounds in ways that can give countless ideas in sound design, too.

Korg M3 workstation

This clip shows two Korg M3 modules connected together, and a lot of inventive custom programming allowing the improvisation to benefit from touchscreen controls changing parameters, while KARMA is creating the ambient sonic textures.

One, perhaps not every day used, ability of KARMA surfaces when one has the audacity to use a certain mode or GE for something entirely different compared to what it was actually meant to be used for.



Why not use something intended for a piano chord frenzy on a rich choral patch to create some interesting motions and atmospherics? The first section of this track inspired by Cordoba Cathedral is an example of this.

Or why not use gated GE to move some sounds around? Opening part of this track and the main motif uses this to add a lot of animation, as certain patches can react quite pleasingly to the KARMA controls (instead of merely hearing e.g. a panning effect).

KARMA ticking along with different scene settings while one builds up a largely improvised track can result in immediately usable results, for example a track dedicated to the Hubble space telescope has had the percussion and bouncing background patterns entirely created with KARMA scenes, which were set up before the improvisation session started. Clean up the result, add some ambiental intro and outro... and there it is.

Speaking of improvisations, the middle section of this semi-ambiental and new age-ish track was set up with two KARMA modules ticking along and playing calm inter-twined motifs on sitar patches... while improvisation could be layered on top.

Wave sequencing is also an area where the technology can create real time controllable sonic magic, if the synthesizer controlled by KARMA can do wavesequences - as exemplified in this clip . Latter  shows the KARMA software that can be used on a computer, while it controls the connected synth, if latter has no built-in KARMA.

Can KARMA be used to bridge musical traditions several centuries apart? Well, yes, two of its modules with real-time controls provided backdrop and the electronic swells for a track that used a theme by John Dowland (Flow My Tears, 1600) and projected it into the sci-fi atmospherics of a Philip K. Dick-inspired album project.

The eternal discussion can ensure of course: what percentage of human input is at work, and how much is done by the algorithms...

Well, perhaps one is biased after years of interesting idea-triggering KARMA experiments, but the fact is that what makes the technology perhaps so non-obvious is actually its greatest strength: it has myriad, truly myriad, parameters one can set up and control also in real time.

So the human input cannot be ignored in setting up the desired KARMA scenes and the parameters of each. Even custom GEs can be created at will... As any tool, this, too it can be used for mechanical results or something human and creative. The difference is in the user, not the tool...

True, once it is set in motion, it runs along the human player, monitoring what is being played on the keyboard or in the incoming MIDI information set to trigger it. So one can forgive some beliefs that it is "just" a complex accompaniment generator.

However, the delimitation line between the human user and the tech at his fingertips is a very blurry one. Even mere step sequencers and arpeggiators in the right hands (think of Tangerine Dream's or Klaus Schulze's trailblazing and mind bending sequencer jams) can be astonishing creative and performance tools.

KARMA is light years beyond step sequencers and arpeggiators... so with all the philosophical doubts and debates one might have, we cannot consider it a robotic add-on in the creative or performance processes in studio or elsewhere.

Like everything else, it can be used for utter robotics, sure... but one can only blame one's own affinities and imagination if rigid patterns are the only things coaxed out of this technology...

Korg Kronos workstation with latest incarnation of KARMA technology

The haunting of the new

Korg Prologue

The title of a classic Ray Bradbury short story, borrowed here temporarily, describes something that happened at the start of this year, and it shows how increasingly limited number of designers can think in novel ways when it comes to, paradoxically perhaps, re-visiting legacy technology of yesteryear. One manufacturer has proven yet again that when putting the musician at the centre of the design thinking, the result can be again a step evolution with something that nobody ever created in a hardware instrument.

We have seen years of retro synth offerings that were inundating the insatiable current market without offering much that the state-of-the-art technology could add as extras to our (home or other) studios of today.

When there was some innovation, usually, with extremely few exceptions, big and small names alike have come forward with instruments that, at best, had small variations on a theme, or added something that then stopped well short of what it could have become.

As usual, the beginning of the year and the NAMM show was expected to parade, even if in the preliminary states of not quite market-ready teasers, the latest and greatest offerings from music instrument makers.

Perhaps NAMM 2018 was one of the most polarised so far, in terms of the samey, endless variations on previous and current themes vs. the truly innovative ideas in the field of electronic instruments. As the ancient saying goes, light shines brighter in darkness - and this year there was one and only one step evolution that made the absence of innovation in the other products all the more evident.

Once again, countless new analogue variations, new modules, new re-spins (this is no longer a contradiction in terms, in the retro wave...) of the past, recent past and even present.

Innovation does not mean adding some extra polyphony or extra oscillators, an age-old matrix sequencer or whatever long pre-existed component to an existing design. Whatever name may stand behind it, let it be Moog or Dave Smith Instruments or Novation, this is simply a re-iteration (as illustrious as it may be) of existing technology.

Among the manufacturers that in the past months did not just regurgitate old ideas or just put new spin on essentially the same previously marketed instruments, Waldorf did stand out with the flagship Quantum. However, even this is merely bringing hardware instruments in line with software plugins that existed for decades.

Still, finally, a granular synthesis engine integrated with something else inside a tangible instrument... but no step evolution here, nothing that many others have not thought of before in terms of sound generation.

Waldorf Quantum

Going back a little bit, in the slightly less immediate past, Roland has thought of hybrid analogue / digital instruments, and produced a while ago the JD-Xa. However, apart from its frustrating user interface, the most frustrating is the stopping in conceptual thinking half-way through. It is a horrendously limited instrument compared to what the marriage of digital and analogue engines could have been.

Roland JD-Xa

Yamaha has produced the Genos, that in their breathtaking audacity (and by definition shocking  incorrectness) they dared to call a workstation. For many decades, the Korg M1 has defined and back then basically create the category - and even on a superficial scan of the Genos specs, it fails fundamentally and spectacularly.... and it is, at best, a sample-based arranger keyboard on steroids.

Yamaha Genos

Long gone are the days when Roland and Yamaha have produced step evolutions and presented entirely new ideas in usable instruments. Apart from endless re-spins of their glorious past (distant past...), what we see is the same synthesis engines being re-spun endlessly, in the best of cases, with some tweaks and expansions...

Even the Yamaha Montage was merely a beefed-up re-spin of their FM and sample-based AWM2 dual engine synths, with a user interface innovation. The brutal fact is that since FM synthesis (in the era-defining Yamaha DX7) and variphase engines (in the innovative Roland V-Synth), these manufacturers have not produced anything other than gradual increments of pre-existing technologies. Nor have many others...

The only step evolution produced and presented in mature form, winning also the "best in show" award at NAMM 2018, was the Korg Prologue. The major step is not because of them releasing yet another analogue instrument, not even because it is a hybrid digital + analogue synth.

There was a lot of discussion on its modulation capabilities with one LFO... which, incidentally, was also the case of several era-defining analogue instruments of the past... Somehow we have not seen legendary Prophet 5 synths tossed in dustbins by annoyed owners because of their single LFO :)

What those discussions and the subjective debates missed entirely, was what we could witness for the first time ever in a hardware synth... Apart from a hybrid architecture that did not stop half-way through the quest of capitalising on its possibilities (as Roland did with the aforementioned JD-Xa), it introduces user-definable, user-programmable digital oscillators and digital effects (!) in the multi-engine.

The ability to define whatever digital oscillator (also digital effects) with a software development kit (SDK) to be released in April, to have 16 of these user-definable units that operate seamlessly as any pre-defined oscillator in the Prologue synth, well, it is something we see for the first time in a full-fledged non-modular hybrid synth keyboard... and as the cliche goes, possibilities are really endless.

Korg Prologue versions

What it shows again, is that in a landscape dominated by the retro movement, somebody can come up with a brand new idea that instead of repeating the same old concepts, elevates them to entirely new heights.

It showed off the increasingly painful difference between thinking with purely marketing minds (let's re-spin a many decades old engine and violate even consecrated instrument category definitions with a huge price tag, one may guess what keyboard this applies to...) and with musician-oriented engineering minds.

Roland a while ago has introduced the plug-out concept, where essentially a software plugin could be loaded into their System-1 and System-8 keyboards. However, once again it fundamentally limited itself: the plug-outs are only done by the manufacturer, there is no open software development, and the plug-out slots are extremely limited anyway.

It was another example and another frustrating case when one gets close to an idea, completely misses the potential and with a very profit-oriented approach produces an almost-solution that does not have the musician and sound creator at its centre,  instead it firmly keeps the manufacturer's marketing thinking at its centre with an iron grip.

Even in this backward-looking market-driven world, Prologue, with the extremely few exceptions of some smaller manufacturers and some modular offerings, it shows there is hope. It happens to come from one of the big names, but it seems possible to come up with something new. As in the case of Kronos, the superlative workstation, this is again something that is bigger than the sum of its parts.

However, it is also symptomatic how devoid of innovation the entire landscape has become, where a few, increasingly few, new ideas stand out.

As in Ray Bradbury's wonderful tale, the newly (re-)created embodiments of old technology can have, in this case, exciting and entirely novel spirits haunting it in the best possible sense.

It also shows that innovation can be propelled by a user- and musician-centric approach, even if it now demands quite a technological skillset in order to capitalise on the offered potentials.

Hopefully, this spellbinding haunting of the new will continue in some, let it be small or super-large, names in the industry.

Of two poles

Photo: Karma-Lab.com

Vangelis, in one of his '80s interviews, stated quite aptly that a lot of development has gone into electronic instruments, but what he really lacked in synth producers' output was the effort put into making the instruments, well, really musical instruments for musicians...

A lot has changed since, and by not only going for the usual "endorsements" from keyboardists but also involving them in the creative process, synth makers have been releasing gear that could increasingly be seen as intuitive instruments. With the exponentially increasing complexity of the synth engines, this was obviously not an easy achievement...

Apart from this obvious evolution that we now take for granted whenever we approach a new synth beast, there has been an intriguing polarisation of the gear landscape.

One one extreme, we have what one may call the "total" syndrome (as in some toothpastes). Forgive the analogy for a tiny moment... and let us think of e.g. Korg's Kronos workstation. A mighty beast by any measure, and a major evolutionary step after the already unprecedented M3's achievements.

However, it is philosophically belonging to this "total" approach: let us cram as many as possible synth engines into it, integrate them nicely, make a revolutionary change of direction toward expandable/upgradeable software rather than focusing on mainly hardware updates.

Musicians in certain genres may never use the myriad Hammond organs, nor the myriad piano or physical modelling capabilities, hence ignoring some if not most of the packed-together synth engines.

Something like Kronos wants to do everything, albeit in an integrated way, but without major customisation possibilities in the sense that e.g. some musicians in certain genres may wish to only pay for some of the synth engines, whilst enjoying what the user interface and the operating system offers. As long as this "total" approach does not take one away from the focus on what musicians really need as users, then fine...

On the other extreme, we have the small, focused, sometimes tiny and bordering on the irresistibly cute, synths... Think of Roland's Boutique series, Korg's analogue (and analogue modelling) gear released in the past few months, or the interesting comeback of hardware sequencers and, generally speaking, the revival of the "oldies and goldies"... Even Minimoog Model D has seen a re-release few weeks ago...

Therefore, personally, it will be very interesting to see where the next evolutionary step comes from and just what the next strategic step will be. Also, personally, one hopes it will not be the direction of the, again forgive the closest analogy, "total" toothpastes with added endless series of comma-separated words that were not in the after-all-not-so-total previous products...

The risk is that workstation landscape will shift toward this latter nightmare-ish scenario that will take us backward, focusing away from what was becoming more and more instrument-like despite its inner complexities... One hopes that with the trend seen so far, the big names shifting the big workstations will not be seduced by such marketing race, i.e. cramming more and more into same or updated hardware.

If the success of "total" workstations will be seductive and make strategists take this latter path of bloating the beasts without really thinking of the musicians' needs, hence inevitably, as seen many times in the past, sacrificing usability, spontaneity and playability in favour of feature lists... then that would definitely be a huge step back.

As Klaus Schulze said few decades ago, when digital gear was seemingly taking over the world and there was seemingly no return, one does not want to stop for minutes, or, one may add, tens of minutes, for poking around menu systems in order to set something up. Hopefully neither "total" magnificent workstation beasts, nor the specialised little beasts will take that route again...