 However, the band was the only artist that played at the festival whose set was never included on any officially released album (prior to 2019), nor on the soundtrack of the film.They released five albums, including "Halfbreed" and "The Battle of North West Six" (characterised by a reviewer for the "Vancouver Sun" as "an amazing display of virtuosity").While in John Mayall's band, Mayall had pushed Hartley to form his own group.