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nathanscribe » Mon Mar 08, 2021 6:08 pm OK so this device is an Introspectiv 9090, which is a clone of the TR-909 sound circuits developed by Colin Fraser and Trevor Page, and it s designed as a module with no onboard sequencer. The analogue sounds trigger at Note On commands as you d expect, and Note Off has no effect on them, they just run to their natural decay as determined by the knobs. The sampled sounds, however (crash, hats, ride) are gated by Note Off, and by the use of Velocity 0 as transmitted by some devices in lieu of Note Off. Clearly this is not something we necessarily want, and certainly if you re sending it signals from another drum machine, it s simply not possible to adjust the note length, so all you get from the 9090 is a tiny click as the sample starts and immediately ends. ....