Sixteen years old, and already he plays like the amplifier owes him money. That's the first impression "Walls Fall Down" leaves, and it doesn't soften on repeat listens — if anything it hardens, the way good blues-rock always does, into something you trust rather than merely enjoy. Luca Cruz has written, played, sung and produced this single alone, which ought to sound like a boast on paper and instead sounds like a fact you'd have guessed anyway, because the whole thing has the unmistakable coherence of a single stubborn vision rather than a committee's compromise.