Answer: tubas

AnswerCrossword Clue
TUBASOrchestra members
TUBASTornado clouds
TUBASThey have big bells
TUBASBrass instruments
TUBASBrass section
TUBASMarching band section
TUBASBass line players
TUBASKin of saxhorns
TUBASEuphoniums, e.g.
TUBASBig horns
TUBASInstruments in military bands
TUBAS"Oompah" producers
TUBASInstruments
TUBASBand members
TUBASValve instruments.
TUBASWind instruments.
TUBASCertain horns.
TUBASBand instruments.
TUBASThey provide "oompah-oompah."
TUBASSome brass instruments
tubasTUBA, a brass wind instrument
tubaslow-pitched brass wind instrument
TUBASHeavy winds
TUBASOrchestra heavyweights
TUBASHuge horns
TUBASBass horns
TUBASMarch instruments
TUBASHumongous horns
TUBASBass voices in the brass section.
TUBASSome big horns
TUBASSome bass horns
TUBASValved instruments
TUBASLow brass
TUBASBig brass?
TUBASSousaphones
TUBASBig brasses
TUBASBass brass
TUBASHeavy brasses
TUBASOompah band instruments
TUBASSousaphones' cousins