Re: new tc electronic looper (Ditto Looper)

[Mark Hamburg <mark@grubmah.com>]

I don't know any of this for sure but based on thinking about sensible 
design choices...

Undo, redo, and stop only work while in play

Undo and redo work on pedal release since they at least have to wait for 
hold time to pass. This means you could time when the undo or redo happens.

There is no good way to time stop. It's just fade the sucker out if you 
can't work with an ill timed stop. The other choice is that they quantize 
stop to the loop boundary.

Timing on starting overdubs may be unreliable if they are waiting to 
confirm that it isn't an undo/redo or a stop. Or they need to rollback 
whatever overdubbing was captured.