Notes within a MusicString are specified by their name and duration.
Durations can be expressed as pulses where 32 pulses represents a quarter note (crotchet). An 'E' quarter note preceded by a 'G' gracenote can be written as [G]/1 [E]/31.
In most of the tunes, the taorluaths and grips have been moved forward so that the beat falls on the 'D' gracenote. This improves expression and helps to give the tune that elusive "lift".