Tiv's Unseen Musician

This spell creates an invisible, mindless, shapeless, Medium force that performs music at your command until the spell ends. It can't do anything else. The musician springs into existence in an unoccupied space on the ground within range. It has AC 10, 1 hit point, and a Strength of 2, and it can't attack. When rolling Performance,  it is considered proficient and your CHA modifier is added to the roll but if it plays with you, it shares your roll. If it drops to 0 hit points, the spell ends and there's a chance the instrument breaks. Roll a 1d20. If it passes a DC 8 + whatever damage is left over. It doesn't break.

Once on each of your turns as a bonus action, you can mentally command the musician to move up to 15 feet and play. The musician can perform any song you know. As an action you can take it's instrument and play a beat or rhythm and then hand it back. When you do. The servant will play what you have played over and over till the spell ends or you tell it to stop. You can command up to 1 plus your CHA modifier of Unseen Musicians. (Minimal of 1). You can tell multiple to play a song all at once, but not set them all at once.

If you command the musician to move more than 60 feet away from you, the spell ends.

At Higher Levels:

For each spell slot castes above 1. You can spawn another musician. But it'll also need an instrument.

Or you could cast it at a third spell slot or higher on your turn as an action, you can cast your spells from it equal to your Half your CHA modifer (round down.) plus each slot above 3. You can also cast Cantrips with this.