[1][2] Sheridan attended the Royal Irish Academy of Music where he studied piano with John O’Sullivan and Valerie Walker, as well as composition with A.J.
[2][3] His compositions include "Saint Canice's Mass" (1969, published when he was only 18) and other choral works, and a huge output of piano arrangements and transcriptions of "ancient" Irish music.
[3] It was Sheridan's ambition to honor and preserve Irish music through his concert appearances and recordings.
In 1988 he founded Trigon Recordings[4][5] as a vehicle for preserving Irish music, especially the works of Turlough O'Carolan, Edward Bunting, Patrick Weston Joyce and George Petrie.
[3] In 2006 Sheridan released a highly praised collection of Ireland's greatest slow airs titled Soul of the Irish Piano.