One of the musicians who released the Grammy-nominated "Fallling Slowly"  is also a guitarist for what Irish group?
Glen Hansard Glen Hansard (born 21 April 1970) is an Irish songwriter, actor, vocalist and guitarist for Irish group The Frames, and one half of folk rock duo The Swell Season. He is also known for his acting, having appeared in the BAFTA-winning film "The Commitments", as well as starring in the film "Once", which earned him a number of major awards, including an Academy Award for Best Song.
Geasa (band) Geasa is a Celtic metal band originating from Dublin, Ireland. Formed by Fergal Purcell and John Kavanagh in 1993 the band combines traditional Celtic music with black metal to form Celtic black metal. They have released one demo album, one EP, and three full-length albums.