Daniel Ponce: Shaw Theatre, London

SALSA, THE modern form of what was once know as Afro-Cuban music, has been threatening to catch on with a wider audience since the middle of the 1970s. Twice during that time it has enjoyed flavour-of-the-month status with the metropolitan avant-garde, but at this point it may have to content itself with a role as flavouring in the great soup of contemporary popular music. There is nothing like an undiluted blast of the real thing, however, such as the appearance in London this' week of Daniel Ponce, the Cuban percussionist.