The Phantom Orchestra

You play a note from a musical instrument and summon 1d4 spectral instruments that play along side you that share your performance roll, and they stay summoned for 15 minutes. The instruments appear to be floating and stay within 10 feet of you, they can pass through most objects except walls, closed doors, and unopened windows. The instruments summoned are ones you are proficient with, but you can sacrifice 2 instruments you are proficient with for 1 you are not, additionally you may summon few instruments then you rolled.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the instruments increase by 1d4 for each slot level above 3rd