majalan

Copperbox revision 3027.

I've updated chord construction to use major and minor triads plus chord transformers (removing further chord constructors). My current reading of Francois Pachet's paper makes me believe I can implement the chord grammar with just the initial two constructors (M | m triads) plus a bag of transformers.

The module is still incomplete though, I need to do some research to fill out the lexicon of chord and interval names.