Antoines Hideous Earworm

This spell lets you convince a creature of your choice that it hears a tune or beat in its head to distraction. Choose a creature that you can see within range that can hear you. The creature must succeed a Wisdom saving throw or be so distracted by humming or singing along with the tune or beat in its head that it will ignore you and your party for the next 5 rounds.  For the duration, the affected creature makes any Wisdom (perception) or Intelligence (investigation) checks at disadvantage. If you or one of your companions harms the targeted creature, the spell ends.

At the end of each of the affected creatures turns, after the first, the target makes a Wisdom saving throw (at disadvantage). On a success, the spell ends.

At Higher Levels. When casting this spell using a spell slot of 2nd level or higher, the affect will last 5 rounds plus one for every spell slot above 1st level.