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An eighth note or a quaver is a musical note played for one eighth the duration of a whole note (semibreve). Its length relative to other rhythmic values is as expected—e.g., half the duration of a quarter note (crotchet), one quarter the duration of a half note (minim), and twice the value of a sixteenth note.
This is usually done to indicate a rhythmic grouping but can also be used to connect notes in ametrical passages. The number of beams is equivalent to the number of flags on the note value—eighth notes are beamed together with a single beam, sixteenth notes with two, and so on.
A single eighth note, or any faster note, is always stemmed with flags, while two or more are typically beamed in groups. [1] In modern practice, beams may span across rests in order to make rhythmic groups clearer. In vocal music, beams were traditionally used only to connect notes sung to the same syllable. [2]
When multiple sixteenth notes or eighth notes (or thirty-second notes, etc.) are next to each other, the flags may be connected with a beam, like the notes in Figure 2. Note the similarities in notating sixteenth notes and eighth notes .
In Bach's textures, the French composer's 8th notes which were eligible notes inégales became Bach's 16th notes. But at the same time, other rhythms were "sharpened" and certain types of three note sixteenth note figures were often "compressed to three 32nd note upbeat figures. And upbeat 8th notes became upbeat 16th notes.
The repetition of a group of two notes is abbreviated by two notes (most often half notes or whole notes) connected by the number of strokes ordinarily used to express eighth notes, sixteenth notes, etc., according to the rate of movement intended, as below. It will be observed that a passage lasting for the value of one half note requires two ...
A single eighth note, or any faster note, is always stemmed with flags, while two or more are usually beamed in groups. [16] When a stem is present, it can go either up (from the right side of the note head) or down (from the left side), except in the cases of the longa or maxima which are nearly always written with downward stems.
Sixteenth notes in the old tempo prepare for eighth notes in the new tempo. [1] Without repeat In music , metric modulation is a change in pulse rate ( tempo ) and/or pulse grouping ( subdivision ) which is derived from a note value or grouping heard before the change.