Bandore

Ability: Charisma Utilize: Play a known tune (DC 10), or improvise a song (DC 15)

The bandore is a complex bass instrument with additional sets of strings, perfect for accompanying tenor and alto instruments in an ensemble.

If you have proficiency with a tool, add your Proficiency Bonus to any ability check you make that uses the tool. If you have proficiency in a skill that's used with that check, you have Advantage on the check too.