'Often seen on pianos, this mechanical timekeeper has an adjustable pace'
a metronome
STARTS WITH A PAST TENSE VERB: Often seen on pianos, this mechanical timekeeper has an adjustable pace
Often seen on pianos, this mechanical timekeeper has an adjustable pace
Often seen on pianos, this mechanical timekeeper has an adjustable pace
STARTS WITH A PAST TENSE VERB
a metronome
STARTS WITH A PAST TENSE VERB