Eat this for chutzpah. Nashville bagman Gill spreads 43 songs over four discs, each on a different genre – rock (’80s Billy Joel, eek), countrypolitan (better), honky-tonk (betterer) and bluegrass (best). It’s a mighty ambitious project, for which he’s called in some favours, duetting with Gretchen, Emmylou, Phil Everly, Guy Clark and Diana Krall. Despite the sheer mass of material, quality remains high, with the loungey ‘Faint Of Heart’, the old-school ‘Don’t Pretend With Me’ and most of the bluegrass CD standing out. But really, credit the enterprise.