traditional musical instruments [1]
Collective term for the instruments, current or ancient, that characterize a culture, era or style of music.
accordion 
Wind instrument composed of keyboards and a manual bellows used to cause the reeds to vibrate and produce sound.
bass register 
Key that changes sound quality in the lower register.
bass keyboard 
Keys that provide a harmonic complement to the treble keyboard.
bellows 
Apparatus that contracts and expands to control air pressure and cause the reeds to vibrate.
grille 
Part through which air and sound pass.
key 
White or black lever pressed to allow air from the bellows to pass, causing the reeds to vibrate and produce sound.
treble keyboard 
Keys used to play the melody.
treble register 
Key that changes sound quality in the higher register.
bellows strap 
Piece that locks the bellows in a closed position.