His other pieces were scored for an electric guitar quartet.
In the recent years he have written "Music for the silence minority" for guitar, string quartet and bassoon.
He was a founding member of the Brazilian Guitar Quartet, playing with them until summer of 2003.
The Academy sponsors a guitar quartet, an outgrowth of its renowned guitar program, which is prominent in the local music community.
They have recently finished work on a Music Network funded recording of Irish compositions for guitar quartet.
For accompaniment, he would alternate between guitar quartets and a full orchestral format for the remainder of his career.
Frith performs with the guitar quartet, but not with the string quartet.
They performed as an electric guitar quartet with guitar amplifiers positioned in the four corners of the venue.
Three guitar quartets, No. 1 in homage to Ravel (1986-1989)
Pregnant Pauses for guitar quartet (2005)