Cormac is a musician and producer of the Whistle-Blower film with Director Trish Mc Adam and brother of Osgur Breatnach accused and sentenced to 12 years for the Sallins Mail Train Robbery in 1976. A  musician, a whistle player Cormac Breatnach was immersed in the Irish musical tradition from early childhood. Throughout his long career he has played with artists as diverse as Elvis Costello, Vanessa Williams, Donal Lunny, Bernard Purdie and Susan McKeown and has recorded many albums to date. Cormac’s music is highly influenced by jazz and blues. Recently, he has acknowledged and embraced his Spanish/Basque roots.