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Current iteration, this one is all MIDI, all synthesized, all in Ableton 8.2.2
all prearranged sequences are templates to build on, Thesys patterns to mutate, or general drum sequences courtesy of Era.
There's only 8 channels, it just looks intimidating with the racks open, the control is quite streamlined and lots of fun.
Ive been trying out various non-303 bass synths, loving the SH-101s and Micromoon, Smartelectronix Taurus emu is good but lacks release controls, ViCON is a Technosaurus Microcon emu, and the 2 303-inspired ones on the end of the bass rack both have full ADSR, the TDAI has dual oscs and the Redstair is polyphonic, which makes for some interesting sound, and has their overdrive plugin built in. The Micromoon, though, is my favorite in teh rack followed by SH-101 (thats its name, unlicensed use I believe, it says in the GUI 'Roland SH-101

its free but not from KVR.) The Mercury also is a good one.
Ive used 303s for basslines for years, mostly sampled in Renoise and volume-enveloped to kill the darn pesky lack of release controls in most emulations and of course, the real thing (Venom VB-303 has a note-length control on the sequencer and sounds better than ABL2, has 2 oscs, distortion, and more than however few octaves ABL2 has, plus all sorts of back-panel options, a lower panel that I dont know what does what and has no GUI yet, X/Y control, 3 filter falloff settings, and TONS of presence in the mix, you all should get a copy of the beta and drool in the KVR thread with me and the rest of the KVR Roland Groupies. Many of whom own real TBs, x0xb0xes, and other 303 emu hardware and are helping make the Venom as close as possible to the original Transistor Bass as possible as well as adding features that everyone always wanted the original to have, but didn't because it was supposed to be soemthing for studio guitarists to use as a standin for real bass guitarists when making demos, with the 808 as drummer, back when the Linn LM-1 was king with its 5000 USD INITIAL PRICE in f@#king.... 1980... AND ITS SOUNDS ARE SAMPLES. The story is backwards, now, the analog is expensive, the sampled/wavetables are cheap. I dream of time travel to back then and scoring massive on cheap analog, just a 303 here, Juno 6 there, SCI Proph 6 over there... And top it with a nice shiny Octave Kitten, ah hell why not make it the full Cat, and pour that Memorymoog over everything, don't skimp on the MIDI interface, Im hungry NOW!)
/tangent
Also theres an effects rack for synths, and one for bass/perc, on return tracks, and a couple Minimal Systems' BK Filter, bandpass for now that does the typical CDJ100 type filter fx. The rack has a Glitch chain, an Ohmicide chain, a Turnado, a chain of Melda fx, and a SupaTrigga with grANALator after, on the end. The synths' rack and bass/perc's rack both trigger individually, as do the filters, but the chain select and Turnado knobs are all the same mappings for consistency and easy operation, a second set of Turnado knobs would need a whole other control scene, since 2 other fades, ahem, 'became autonomous objects' and Im down to 4 til I manage the delicate process of dismantling the entire microKONTROL to extract the control PCB and superglue the damn things back into their 1.1mm deep plastic sockets for good and all, and see about resoldering a couple of the pots if its not rocket surgery.
All the synths in all the racks are constantly being messed with, so theres hardly any potential for playing the same sounds twice. Most of them are freeware analog-emulations, just like I like em. Formerly there was a 303 rack but I haven't really felt the need to TB, yet, and too many different sequencers to mess with can be overwhelming.
However.... The more options there are the more variation there is, the more interesting the sets are, and the more fun to play they are, and fun is inspirational, which can only be good for studio work.
Also, there are MIDI fx racks on everything that sends or receives note data, filled with Scale devices cannibalized from Axis Mundi's MIDI rack plus the ones I made looking up exotic scales on Wiki, all racks have the same 2 control mappings, so everything is always playing in key, which of course makes everything sound cleaner, and key changes are just a matter of a knob twist. Considering getting pretty intricate with individual racks' keys, exploring complimentary scales, so for example the bass can be Mixolydian but the synths Pythagorean (idk if those are complimentary just the 2 that popped into my head), or perhaps bass Mixolydian with base note E1 and the synths Mixolydian with base note D#2 (again idk if thats accurate musicologically but whatever)