[Coco] MML converter for GMC supports multiple voices

[John W. Linville]

MML support for the Game Master Cartridge now offers a simple way to
produce musical tracks in multiple voices.

	https://www.youtube.com/watch?v=vXbx_MuQUvo

Two voices are demonstrated, but a total of three are supported. Still
a work in progress, of course...but not bad... :-)

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville at tuxdriver.com			might be all we have.  Be ready.