Otis Kane and Aaron Childs trade verses and handle their own instrumentation on 'Monday', the latest in a run of retro-soul collaborations between the two. Otis's raspy, well-worn tenor sits against Aaron's airier register, the two voices circling each other loosely, call-and-response ad-libs threaded through the gaps. Aaron, who grew up around his father Billy Childs' LA jazz sessions, keeps his playing sparse and unshowy; Otis holds the rhythm section back, built on warm Rhodes and loose-limbed bass. Both artists take production and engineering credits here, a step up from the guest-vocal turns that marked their earlier pairings. The video matches it beat for beat with grainy film stock, period styling, a palette that sits comfortably in 1974. Every choice, sonic and visual, points the same direction.