Hello Levka,

> 1) a quantizer with 12 switches for each individual note, maybe with
> gate inputs to switch each note on and off.

This is a very interesting suggestion.

> 2) a voltage controlled arpeggiator with midi in, cv + gate out and VC
> for selecting several patterns, and for gate length

Sorry to be annoying: please do this modular! The arpeggiator should
have address inputs (4bit plus one Enable is enough) and the control
section should be distributed to separate modules. This would make it
possible to combine it with any other sequencing module.

Florian