In 1980, Marsh studied at the Creative Music Studio in Woodstock, New York, after which she formed Creative Opportunity Orchestra, with the members of New Visions Ensemble at its core.
In 1980, at the suggestion of Charlie Haden, Marsh studied at the Creative Music Studio in Woodstock, New York. Upon returning to Austin, she formed the Creative Opportunity Orchestra with the members of New Visions Ensemble at its core.