Thanks. That would work for some situations ... like short chord progressions (I IV V; turnarounds, etc.). It gets a bit unwieldy (my opinion) for longer pieces.

What I've been doing for longer things is just creating 12 separate song files, each in a different key, batch converting them to MP3s and making a playlist of the MP3s and playing that playlist in VLC. Also unwieldy, but it's easier to change the order of keys if I want (by 4ths, by 5ths, by half steps, etc.) just by changing the M3U (the playlist).


Dave Hein
(electric bass enthusiast, BIAB 2019 (Mac), BIAB newbie)