Originally Posted By: Gordon Scott
Possibly the instruments to which it applies should simply be selected directly, rather that the "all except", which to me seems like a kind of double negative.

Yeah.

It would make sense to have "All Except" if there were like 75 possibilities, but since there are only those five (bass, piano, drums, guitar, strings) it's just confusing clutter to have "All Instruments" and "All Except" there at all. Just check what you want!