Instrument
30 GP, 1 lb.
  • Ability: Charisma

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

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.

Source: PHB'24, page 221.