0 a musical note with a time value equal to two quavers or half a minim
1 a note that is typically played for one beat
In this entire first half, the quarter note functions as the basic rhythmic unit.
It has rhythmic complexity; in the first four measures half notes, quarter notes, eighth notes, eighth note triplets and sixteenth notes are all encountered.
In the first section, the left hand accompanies with a bass line written out in repeated quarter notes, in bars 1, 2, 3, 5, 6, and 7.
A quantisation algorithm nudged each onset towards the closest quarter note, eighth note, or quarter note triplet.
This pattern then scales down again, to one quarter note and a half note.
The main drum part is almost universally in common time (4/4); meaning 4 quarter note pulses per bar.
Dashes after a note lengthen it, each dash by the length of a quarter note.
These songs use a backing sound with a four-on-the-floor house style, meaning that there is a kick on every quarter note.