Historical clue formulations

• It's often played by nonmusicians — 2025-06-14
• Instrument "played" in the "Bill & Ted" movies — 2024-06-23
• It's never out of tune — 2024-02-22
• Instrument anyone can play — 2023-04-23
• You may pretend to pick one — 2006-02-11
• Wannabe rocker's instrument — 2005-10-29