Fixed, as a piano

TUNED

Think of the regular maintenance needed to keep a musical instrument sounding its best—this word describes that process. It’s also what you might do to a guitar or violin.

"Fixed, as a piano" hints at adjusting the instrument so it sounds correct, which is what you do when you tune it. The word "fixed" here doesn’t mean repaired—it’s about making sure the notes are in the right pitch. "Tuned" fits because it’s the past tense of tune, matching the clue’s phrasing. Think of a piano tuner turning the pegs to get the strings just right.