A quarter note or crotchet (/ ˈ k r ɒ t ʃ ɪ t /) is a musical note played for one quarter of the duration of a whole note (or semibreve). Quarter notes are notated with a filled-in oval note head and a straight, flagless stem.

A quarter note (or crotchet) is a quarter of the value of a whole note. Therefore, 4 quarter notes add up to one whole note. Here is the symbol for the quarter note/crotchet.

Quarter Note = Crotchet; Eight Note = Quaver; Sixteenth Note = Semiquaver; Thirty-Second Note = Demisemiquaver; Sixty-Fourth Note = Hemidemisemiquaver; Dotted Notes. A dot behind a music note increases the duration of this note by half of its original value. For example, as 1 Half Note = 2 Quarter Notes, half of a Half Note = 1 quarter note.

The quarter note has become the de facto standard 1 beat music note. This has happened as the 4/4 time signature is the most popular (with 3/4 and 2/4 following close behind) and quarter notes have a duration of 1 in these time signatures.

2025年3月17日 · Quarter notes, or crotchets, are probably the most common note type in music. As we see above, a quarter note crotchet consists of a closed note head (the black circle) with a stem. We see that the note extends up if the note is below the third line of the staff.

2016年3月26日 · The quarter note is the third note; it looks like a filled-in half note, with the same stem attached. You hold it for one full count, which is a quarter of a whole note. Now the design of the time signature makes full sense; in 4/4 time, the quarter note gets one full beat, and the measure has four beats before reaching the bar line!