Ernesto's son has set up a new website making his father's music available for purchase or download through several outlets. He is now working on a project to release the sheet music, also, but I know he plans on several different projects with this enormous body of work. First is remastering and releasing the entire old MP3.com catalog, then there is a large volume of yet unreleased new material which I think is going to be done along with the sheet music. You can get more info and sign up for the newsletter at this link:
Www.ernestocortazar.net
Www.ernestocortazar.net