Initial commit of working implementation of interval/pitch algebra etc.
Note that type classes use fundeps in this revision.
Given up on existential GADTs -- types are now specialised for
particular note-types, all the way up to AbstractPhrase/Music. On the
plus side, working mapPhrase, mapMusic and abvoe all, correct
implementation phrase-tree-splitting (need to add tests to Tests.hs
though).
first page of costeley, plus lots of tunings
licence and cabal file, and more tuning systems
include arbitrary lilypond directives in music, and septimal meantone now works properly
Merge branch 'master' of https://github.com/ejlilley/AbstractMusic

Conflicts:
	LICENSE