'Invented by Dietrich Winkel, this musical device can sound a steady beat at various speeds'
a metronome
BEAT IT: Invented by Dietrich Winkel, this musical device can sound a steady beat at various speeds
Invented by Dietrich Winkel, this musical device can sound a steady beat at various speeds
Invented by Dietrich Winkel, this musical device can sound a steady beat at various speeds
BEAT IT
a metronome
BEAT IT