Van Dyke Parks, in an interview concerning Song Cycle:
Aaron Copland (who'd given me an A in a collegiate test) was once asked, "What is American music?" He answered, “American music is music that was written in America.” I believe that explains the penchant that some music observers have for branding Song Cycle "American."It appears that Song Cycle will be reissued in 5.1 sound later this year.
A related post
Van Dyke Parks' Song Cycle