Before becoming a solo star, Boz led another life as a singer with the Steve Miller Band in their ‘60s psychedelic days. Despite the paisley-patterned setting, when Scaggs' greasy growl blends with Miller's Chicago blues-schooled licks on tunes like “Steppin Stone,” it's easy to follow the through line to the epic blues rock jamming of the mournful, moody “Loan Me a Dime” from his '69 solo outing.