The 'proper' way to do this (IMHO) would be to have the song file list and save the instrument names, then load these instrument names into the interface so they show both in the mixer, and in the main window on the brown bar (actually the brown bar is now redundant) and, in any other part of the interface they are required.

The text box could show the name of the instrument and the name of the player (why not). If this goes over a given limit (say ten characters) then there would be a drop down of the full name when hovering over, or a tooltip.

Win 11 64, Asus Rog Strix z390 mobo, 64 gig RAM, 8700k