Antonio Font? Never heard of him. Carlos who? After a summer of festivals that saw big-name artists such as The Sex Pistols, Blondie and Leonard Cohen coming out of the woodwork to pay the mortgage, it’s easy to miss the point of Barcelona Accio Musical (BAM). The beauty of this festival, now in it’s 16th year, is that it introduces lesser-known bands to a wider audience and the majority of concerts are free.