Restless music is unquiet, uneasy, perpetually agitated or in motion
uneasy, ill at ease, restive, fidgety, edgy, on edge, tense, worked up, nervous, agitated, anxious, on tenterhooks, keyed up, apprehensive, unquiet, impatient, nervy, jumpy, jittery, twitchy, uptight, wired, like a cat on a hot tin roof, like a cat on hot bricks, stressy, sleepless, wakeful, insomniac, fitful, broken, disturbed, troubled, unsettled, uncomfortable, tossing and turning, watchful, insomnolent
(of a person or animal) unable to rest or relax as a result of anxiety or boredom.
"the audience grew restless and inattentive"
offering no physical or emotional rest; involving constant activity or motion.
"a restless night"