Spanish four-piece Melenas have a knack for making the kind of fresh, crisp indie pop bops that latch onto your aural pathways and don’t let go. See: “Bang,” a number that melds motorik beats, vining vocal melodies, and up-and-at-’em synths into a track that leaves you feeling real, real good — optimistic, even.

It kicks off this week’s guest mix from Melenas, who keep the good vibes going with 45 minutes of delicious sounds to make you wanna get down.