A brass band in London that plays Bollywood - Indian film - music might seem unlikely. However, there's a strong Indian brass tradition - a legacy of the Raj- and there is such a band, called, remarkably, the Bollywood Brass Band, which has been in existence for almost a decade, a firm branch of the burgeoning Anglo-Asian music scene, with one self-titled album under their belts, and a new release on the way.