Loz Speyer has long been on the list of idiosyncratic British jazz musicians arguably requiring further attention. Following 2017's Inner Space band's Life on the Edge, Speyer returns to lead his Afro-Cuban-inspired ensemble Time Zone with a new album, Clave Sin Embargo. The band was initially spurred by the leader's lengthy sabbaticals over the previous decade in Cuba, playing and studying son and other folklorist music cultures. But the trumpeter offers a fresh perspective on that heritage by way of his London-based ensemble's taste for raw punky downtown improv via New York, all the way through to free-jazz elements. But the music's convivial dance sensibility sourced from son, batá and salsa is always apparent. Speyer's compositions carry pungent sax-trumpet lines influenced in part by Ornette Coleman, a name that surfaces as well in the noteworthy playing of post-Loose Tubes generation guitarist Stuart Hall. His comping and solos are a direct, stimulating conjunction of African folk, old blues and R&B through to Marc Ribot and the woozy eccentricity of Billy Jenkins, a former bandmate. Though this might not be the kind of ecstatic, ultra-percussive Afro-Cuban music of the homemade variety, Speyer's London-filtered alternative is nevertheless a cohesive and authentically engaging one.