At first glance, this notation looks like too many beats are in each measure, but the three diagonal lines between the notes signal you that this is a tremolo. These two notes share the note length. Therefore, you only count the beats of the first note. ... Probably the most popular left-hand tremolo is the octave tremolo.
How do you notate a tremolo?
Tremolo is notated with three slash marks on the stem of a note, or located directly over the note.
How do you notate a tremolo between two notes?
Tremolo
- A one-note or one-chord tremolo is indicated by strokes through the stem of the note or chord (or above/below if a whole note). E.g.
- In a two-note or two-chord tremolo, bars are drawn between the notes. E.g.