Half-Blood Blues (styled without the hyphen in the UK edition) is a fiction novel by Canadian writer Esi Edugyan, and first published in June 2011 by Serpent’s Tail. The book's dual narrative centers around Sidney "Sid" Griffiths, a journeyman jazz bassist. Griffiths' friend and bandmate, Hieronymus "Hiero" Falk, is caught on the wrong side of 1939 Nazi ideology and is essentially lost to history. Some of his music survives, however, and half a century later, fans of Falk discover his forgotten story. Source: Wikipedia (en)