Derek Trucks has described Let Me Get By as the “first autonomous record” that Tedeschi Trucks Band has made: the first since the dissolution of the Allman Brothers Band (of which he was an integral component during the band’s home stretch), first for a new label, first written entirely by the band members. It undeniably feels like a fresh start, a resetting of course, from the opening notes of “Anyhow,” whose opening lyrics—“Running from a bitter taste/ Took a rest from all the chase/ Feeling something anchored on my soul”—declare that liberation loud and clear, through “In Every Heart,” the blues-infused finale. If the band—12 members strong—has been working toward defining a sound till now, then Let Me Get By is where it takes shape. On the eight-minute “Crying Over You/ Swamp Raga”—its first section sung by Mike Mattison, who co-wrote the number with Trucks and Susan Tedeschi—spends its first three-quarters reveling in pure, funky, large-ensemble soul before, suddenly, and quite effectively, slipping into the calming meditation suggested by the title’s second half. It’s as much classic TTB as “Laugh About It” and the title track—gutsy, inspirational numbers that’ll have you shakin’ a tail feather, whether you want to or not. The usual TTB cogs are firmly in place, with some tweaking—Trucks’ sublime slide has gotten both sweeter and tougher, Tedeschi’s own guitar takes a more upfront position alongside her vocals, and newish bassist Tim Lefebvre brings some serious power-drive. But, here, the focus on song structure and groupthink adds up to a wholeness that was, before, still elusive.