A mechanical device used to indicate musical tempo
[DOC] [TLE] Glossary for Music Appreciation [PAR] mute A mechanical device used with string and brass instruments to muffle the ... 
nationalism A nineteenth-century political movement that led in music to the... [DOC] [TLE] Tempo in Music - Phoenix Symphony [PAR] by the manipulation of musical time in a piece, or the speed or rate at which 
music ... with the advent of the metronome, a mechanical device ... in music (see.