The New Great American Symphony?

It’s John Adams’ “Naive and Sentimental Music” (note it doesn’t say “symphony” in the title). “This three-movement, 45-minute ’emphatically tonal’ piece can’t escape its own nature though, though. ‘It sounds like a symphony and it behaves like one, so it probably is,’ admits Adams. Nor can its modest author escape the accolades that have followed his work.”