London trumpeter Loz Speyer specialises in a mix of mutated American hard-bop and classic Afro-Cuban music that might seem like devoted mimicry on paper, but turns out to be a vigorous display of independent character. Speyer lived for a while in Santiago de Cuba, and the debt is undisguised. But, as a British musician of Django Bates's generation, Speyer has done things his way, and the result is a contemporary Latin-jazz of considerable muscle.

Speyer's band, Time Zone, has just had a makeover - and with the addition of conga player Satin Singh, the Cuban roots of their music have come even closer to the surface. The trumpeter's drily deliberate, frequently tight-muted sound is also engagingly set against the lithe alto-sax playing of Martin Hathaway, also eloquent on bass clarinet.

The music had a warmly harmonised but melodically succinct style. Eruptions of fast Latin shuffling sprang out of these episodes, with Singh and drummer Simon Pearson establishing a clamour of polyrhythms, and the excellent guitarist Jez Franks interpolating a scattered punctuation of choppy chords.

Speyer's Mood Swings lazily grooved to the sultry sound of Hathaway's bass clarinet, and a fast-moving, Ornette Coleman-like freebop melody of wide intervals and sliding cadences brought another tautly conceived solo from Franks. Time Zone can't always pull off the flaring attack and full-on bravura of a Cuban band, but they occupy a space of their own in UK contemporary jazz.