An eighth note (American) or a quaver (British) is a musical note played for one eighth the duration of a whole note (semibreve), hence the name. This amounts to twice the value of the sixteenth note (semiquaver).
The whole note has the longest note duration in modern music. The semibreve has the longest note duration in modern music. The half note has half the duration of a whole note. The minim has half the duration of a semibreve.
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An eighth note (American) or a quaver (British) is a musical note played for one eighth the duration of a whole note (semibreve), hence the name. This amounts to twice the value of the sixteenth note (semiquaver).
The whole note has the longest note duration in modern music. The semibreve has the longest note duration in modern music. The half note has half the duration of a whole note. The minim has half the duration of a semibreve.