Preludes Inegales, is named after an improvisatory group of which Butler is a member. It explores ways in which improvised material can be worked on in more formal compositional ways. Butler then improvises again on thecomposed material, 'composing' again - and so on, resulting in this characterful set of preludes for solo piano.
| Arrangement | Piano |
| NumberOfPages | 28 |
| Publisher | Oxford University Press |
| Contributors | Butler, Martin(Composer) |
| ISBN | 9780193401914 |