He is a member of the family band Clannad, and co-wrote the hit song "Theme from Harry's Game".

Since the early 1990s, Pól has gained critical acclaim as a solo artist when he joined Japanese musician Joji Hirota and Chinese musician Guo Yue, and released an album, Trísan.

More recently, Pól wrote the soundtrack of the movie When the Sky Falls (1999) and performed at the 2001 Carnvaha festival in Wexford, Ireland.

He has toured extensively all over the world and is also joined by many popular artists.

In 2008 Pól won the IFTA award for Best Original Score for his work on the Irish film Kings.