What music is not derivative?


I was just reading up on some older posts about peoples opinions of some new bands. There are often times people complaining about music being so derivative and unoriginal. My question is what music released in the post Beatles era has been truly original?

I have a few ideas in mind, but will let y'all have the first shot at it.
jposs
I'm more than sure that beatles is somewhat derivative of Bill Heiley, Elvis Presley,...
Frank Zappa can be considered as a complex derivative of higher than first order from different bands often humiliating them with his genious musical way giving an extra-ordinary colour to the jazz and rock.
Gentle Giant is not the first-order but still can be considered as a derivative to Genesis and so is Van Der Graaf Generator. The first-order derivative of Genesis we can consider Marillion.
If you consider King Crimson than Robert Fripp is not only a leader of that band but a talented mathematician and there is a whole line of "Larks..." created further on as a true multiple order derivatives of the original "Larks Tongues In Aspic" composition. I'm still checking this hypothesis and more believe that it's true.
An abstract music can be presented as a very large-order derivative of hell-knows what:
David Byrne working with Robert Fripp or Bryan Eno started to take a high-order derivatives I assume from his previous Talking Heads works giving some unrealistic abstractions.

I'm sure that Pink Floyd is derived somehow, but it was a band of my youth rather than I'm too much into it right now.

Monsieur Jacques Loussier brought the hypothesis that jazz was derived from J.S.Bach and figured why not playing original instead of derived in the classic jazz trio.

Very often the high orderds of derivatives we accept as an original and somwhere we could be right about that since if you compare already the sixth order derivative with original less-likely you would see the connection between.
Hummm....Every music is derivative. Nothing bad about that. In fact, it's a good thing. You stand on someone's shoulders...you can see further. I'm not one to say there is nothing new under the sun but there is nothing completely new. Are you going to create a new scale or something? Even Coltrane had his debts. Shakespeare read Ben Johnson and the Bible.... In undergraduate school we had a discussion group we named "de novo ex nihilo", roughly translated "the new from nothing."

Looking back at it.... what a ridicules conceit!

I remain,
Dire Straits, to me, on first hearing, sounded strikingly fresh, original, unique and worth listening to, compared to the thrash heap surrounding them at the time. The trash heap, many years later, is just bigger and stinkier. Good day.
Check out the clarinet playing of Jimmy Guiffre and Joe Maneri -- they are classified as jazz musicians, but nobody sounds like them to be sure!
I love Mark Knopfler but he would be the first to acknowledge his many heros and main sources. Among them Chet Atkins and J.J. Cale. Look at the chord progressions of Cale. It runs through all of Knopfler's stuff. Unmistakable.

I remain