For those interested, these music buffs are trinkets, so they require a slot. I took screenshots for your viewing pleasure.
Then, after your last purchase, and claiming your instrument, you can see what the next item is:
And finally, here is the item equipped:
I really wish these were just items on the game room table or something along those lines instead of taking up valuable trinket space.

Then, after your last purchase, and claiming your instrument, you can see what the next item is:

And finally, here is the item equipped:

I really wish these were just items on the game room table or something along those lines instead of taking up valuable trinket space.