Nicki Bluhm relocated from California to Nashville in 2017 at the end of a tumultuous period in her life. She had just divorced her husband and former bandmate, she parted with her group The Gramblers, and set out on reviving her solo career. But it’s on “Tumbleweed,” with the brilliant funk guitars and psychedelic keys, where she taps into those soul and cosmic country influences. “Cumberland Banks” finds her sliding back into the country influences, accentuated with a string band. The peppy “Simple Side of Me” is a solid folk-rock track (but with an added chorus of backup singers).