note value
Noun
Meaning
(music) the relative duration of a musical note
Source: WordNetSynonyms
Hypernyms
Examples
For example, staccato is the shortening of duration compared to the written note value, legato performs the notes in a smoothly joined sequence with no separation.
This means that a particular note value (for example, a quarter note, or crotchet ) is specified as the beat, and that the amount of time between successive beats is a specified fraction of a minute.
This term has been sustained to the present day, and though now it means the beat is a minim (half note), in contradiction to the literal meaning of the phrase, it still indicates that the beat has changed to a longer note value.
Dotted notes were never used in this way in the mensural period; the main beat unit was always a simple (undotted) note value.
First, a smaller note value in the beat unit implies a more complex notation, which can affect ease of performance.
N.B.: in modern compound meters the beat is a dotted note value, such as a dotted quarter, because the ratios of the modern note value hierarchy are always 2:1.