Search-Bar Suggestion

When searching through scores that have two or more instruments you cannot choose the second instrument if it is the same. So, if you are looking for an alto saxophone duo or trio arrangement, you would have to search among many other trios and duos that are not alto trios or duos.

My suggestion:

Option 1: A button in the search bar that allows you to "search only for this instrument".
Option 2: when clicking an instrument, that same button is repeated below so that it can be clicked again.