Earworm

You cause a tune that you know or create to be stuck in the head of one individual within range. You choose the nature of the tune. It plays faintly in their mind for the duration. You may stop the spell at any time (no action required).

You may have up to 3 creatures under the spells effect at the same time. If you cast the spell a fourth time, the spell drops from the first creature you affected, and so on.