John Quirk is a Welsh musician with a wealth of professional experience as a Musical Director, arranger, composer, conductor, singer, pianist and bass guitarist. His work is mainly in television, theatre, arranging, and recording. He has been fortunate enough to work with, among many others, such internationally acclaimed artists as;

Bryn Terfel, Rebecca Evans, Cerys Matthews, Catrin Finch, Gwyn Hughes-Jones, John Owen Jones, Larry Adler, Peter Karrie, Ruth Jones, Leo Sayer, Connie Fisher, and many light entertainment stars such as Joe Pasquale and Neil Morrissey.

As a conductor John has worked with the BBC National Orchestra of Wales, the Danish Radio Orchestra, the Chamber Orchestra of Wales, the Welsh Session Orchestra, and many other ensembles, in television, concert work, and theatre.