[Haskell-cafe] music-related problem

[Michael Mossey]

Hi Stephen,
Thanks for thinking about this. The problem, though, is that notes can 
overlap in time. MusicXML solves this by having not just Note and Rest, but 
Backup and Forward which indicate the "current position" should be moved 
before interpreting the following data. I'm trying to make it simpler than 
that, by giving a note an absolute location and duration.

-Mike

Stephen Tetley wrote:
> If you add Rest as an alternative constructor to Item you should be
> able to attribute Items with their duration rather than their onset
> position. For most processing this would simplify things.