Answer: retunes

AnswerCrossword Clue
RETUNES

Adjusts pitch

RETUNES

Adjusts

RETUNES

Fixes a piano again

RETUNES
Adjusts, as a piano
RETUNES
Prepares to play after a break
RETUNESRestores to harmony.
RETUNESPrimes the piano again
RETUNESPulls some strings?
RETUNESFixes, as an instrument
RETUNESMakes grand adjustments?