Answer:

accordion

AnswerCrossword Clue
ACCORDIONSqueezebox
ACCORDIONOktoberfest instrument
ACCORDIONPopular zydeco instrument
ACCORDION"Weird Al" Yankovic's instrument
ACCORDIONLawrence Welk's instrument
ACCORDION"Push my buttons!"
ACCORDIONBig squeeze
ACCORDIONZydeco instrument
ACCORDIONPortable keyboard instrument
ACCORDIONPopular talent show instrument.
ACCORDIONCousin of the concertina.
ACCORDIONWelk's instrument
ACCORDIONBand member's main squeeze? [4]