Pioneered in the 1950s by musicians breaking the rules of jazz and composition, free improvisation is still as difficult – and potentially transcendent – as it ever was. A Guardian documentary takes ...

‘What we have here… is a book full of HOT free music, RED HOT!’ Swedish saxophone hero and self-confessed ‘discaholic’ Mats Gustafsson can always be relied on for an effusive quote and his foreword to ...

In Derek Bailey's words, improv is "playing without memory." In Britain, in the mid-60s, free improvisation (often just called "improv") developed out of free jazz, eventually becoming a separate and ...