to recapitulate: saving a Patch requires at least 3 save operations,
if you’ve done an edit to a Tone: you need to save the Tone, and then
the Timbre (if you’ve made a new Timbre), and then you need to save
the Patch.
if you don’t, your Patch won’t be right after you called up another
Patch and go back again.
phew. just had to lay all that on the table, so we know what we’re
talking about.