1.   Because there was no repertory for guitar quartet, the Romeros transcribed chamber works by the Baroque masters and commissioned new works.

2.   Celedonio Romero, who founded the Romeros guitar quartet with his sons, Pepe, Celin and Angel, died Wednesday at Mercy Hospital in San Diego.

3.   From there, he turned it into an extended guitar quartet, preserving some of the sections for guitar duo.

4.   However, while string quartets have an infinite repertoire of great music to draw on, a guitar quartet has to commission new works and rely on transcriptions.

5.   Not just any piece makes an effective transcription for guitar quartet, however.