Hi!
The Stepper Acid sequencer is great, but I already have a tracker that I like to use for sequencing, and I think it requires external filters and oscillators. So I'm looking at the x0x heart module.
For doing acid basslines, the tricky part is the TB-303 note-assignable slide. I think there are MIDI messages for portamento that are relevant (e.g., MIDI CC 5 and 84), but I bet they're ignored by a lot of simple eurorack modules. Right now I'm thinking it would be better to use a gate triggered on another MIDI channel to control the slide CV in the x0x heart module of a rack like the one below.
This rack has some other stuff I'd be interested in using, too, but I'd start with the modules that drive the x0x heart.
Does anyone have any comments about this approach?