MIDI Sequencer Drives Cyma Forma ALT. ALT says OK, But Here's How It's Gonna Happen

Описание: The Cyma Forma ALT reacts to MIDI differently than your usual synth. Though it responds to MIDI note, pitch bend, velocity, and aftertouch data, there's no choosing a channel to receive this data. Note data sent on MIDI channel 1 (Mode 1) triggers one oscillator (oscillators 2 through 5) after another, round robin style. These notes are transposed according to what scale and root note you have set up, and where the pitch slider is. (A C from the sequencer is not a C on ALT, an F# is not an F#, necessarily). The VCA is also triggered. The Keystep is sending a 6 note sequence, so what ALT oscillator gets a particular MIDI note changes. You can do the math, if you want to. I don't. In this instance, the ALT is in a minor 7th scale, root note is C.

Notes sent on MIDI channel 2 (Mode 2) are played monophonically - all 4 oscillators play at once. In this mode, a C on a keyboard or sequencer plays a C on ALT, as long as the pitch sliders are set to play the root note (at the bottom, in the middle, or at the top of their travel). This also triggers the VCA.

Mode 3 (notes sent on MIDI channel 3) is the same as Mode 2, except the VCA is NOT triggered. The oscillator volume faders must be turned up to hear notes.

In this video, I change from Mode 1 to Mode 2 at 1:37, then change back to Mode 1 at 2:47. Notice the oscillator blinky lights change how they light up.
LFO 1 modulates oscillators 3 and 4. LFO 2 modulates filter 1 cutoff, which is in low pass mode. Filter 2 is in high pass mode. I dump in a bunch of delay , and mess around with filter cutoff, delay time, oscillator pitches, and LFO speeds (starting at their fastest, audio rate speeds).

Oh yeah. I punch in oscillator 1 occasionally in the beginning. Everything runs through a nice Ensoniq DP/4 reverb.

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