Fourth Fill

As a short intro we can use our well known fourth fill in the bass from the 5th to 1st step the chord (see Chords On Piano 2 p. 65, Chords On Piano 1 p. 51) with or without a right hand and maybe with a little ritardando going up to 1 beat. I the slow beat version of 'Mary's Boychild' we're up in full beat immediately, and we have a parallel voice to the bass line. See also the section on scale bass and fourth fill on theleft

Marys Boychild