"Peaches En Regalia" called. It wants to kill you.
Actually, you prove my point.
"Peaches En Regalia" is one of his few songs, as I said, that is considered an important composition as a whole.
Yet those groups who perform it are usually jam bands and jazz ensembles that use the song as a starting point for their own improvisations - replicating it note for note is not the point.
And the song, in its best known version, is - unlike the bulk of Zappa's 70's work - brief, complete in itself and tightly realized. Every part of it works toward creating a beautiful whole.
For Zappa that was an exception, not a rule.