'gum', (an un-capitalised acronym of 'grand universal music') is an 'argumentum ad musicum'. Whether you translate that as 'an argument from music', or 'an argument to the musician', is (of course) entirely up to you. 'gum' seeks to be a discreet set of observations upon which truths can be stated about Music, *no matter the style or culture within which it arises*. Its aim is to investigate, not what Music is, but what Music can, or could, be. In 'gum', the Audio-Visual Artist, spike brown, conducts a conversation, which draws on his considerable experience as a working musician, composer, director, producer and teacher, through which he sets out an imaginative approach to Imagination itself; a fresh view of the relationship between the musician and those who require the music to be realised; and an extensive, comprehensive survey of the raw materials and tools available to the musician, by which music may be actualised. Along the way, the author offers an alternative to the 'Computational Theory of the Mind'; reveals the best piece of unsolicited advice he ever received, as a developing Musician; and bursts the party balloons of many a household name.