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Time signatures
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Specific time The bottom number represents the note value of the basic pulse of the music (in this case the 4 represents the quarter-note). The top number indicates how many of these note values appear in each measure. This example announces that each measure is the equivalent length of three crotchets (quarter-notes). It was referred to as a "perfect" time. |
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Common time This symbol is a throwback to sixteenth century rhythmic notation, when it represented 2/4, or "imperfect time". Today it represents 4/4. |
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Alla breve or Cut time This symbol represents 2/2 time, indicating two half-notes (or equivalent) per measure. |
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Metronome mark Written at the start of a score, and at any significant change of tempo, this symbol precisely defines the tempo of the music by assigning absolute durations to all note values within the score. In this particular example, the performer is told that 120 crotchets, or quarter notes, fit into one minute of time. Many publishers precede the marking with letters "M.M.", referring to Maelzel's Metronome. |
Last Updated: September 26, 2008, 2:44 pm




