This is not addressed to any forum respondent in particular, but is pointed at one resource mentioned in this thread that talked about "boring" classical progressions stuck in I, IV and V.

I own the Classical Fake Book and I see a lot more than 1, IV and V going on in there. I sometimes even see chords I have to look up. smile

Also, as I am trying to learn to Play Bach's Partita 3 for Violin in E Major I see there are many pages where a new chord appears every measure (I mean brand new unexpected chords that have not been used before in the song), using some chords I have never seen before, with my pinky bent backwards over my thumb just trying to play them, so I am going to have to disagree with Gary Ewer that Bach can be "boring" or "dull" or whatever he said in that post Mario referenced. (I still like his songwriting books though.)

Jesu Joy of Man's Desiring which is one of the easier pieces has about 6 times more chords than Blackbird, which has a lot. Blackbird borrowed liberally from this it seems, though Paul points to a Bach Bourree in E Minor. The famous Prelude I in C from Well Tempered Klavier? Simple Chords? Boring? Huh?

This from Ewer is flat out off target:

"It may surprise you (maybe even disappoint you?) to know that Classical composers were not usually very innovative with their choice of chords. In fact, if you strip Bach’s counterpoint down to its basic chord structures, you’re looking at something that might be considered downright dull: lots of I-chords and V-chords, with ii-chords and IV-chords thrown in for good measure. What complicated things harmonically was that he visited many keys within the same work."

Ummmmmmmm. No Gary. No can agree man.

None of Bach's music works without the intricate counterpoint and subtle chord changes and variations which means that the internal melodies and chord inversions are constantly changing. Even a simple tune (simple for Bach that is) like Jesu totally destroys the idea that his chords were "simple" and "dull." I am sorry but that is just crazy.

Back to the original question though:

I think ALL music is composing by definition--it's only a matter of complexity--and I find it fascinating to study the chord progressions of classical composers.

In Mozart's day they would throw rotten tomatoes at you if you tried to rip off someone else and couldn't come up with something more entertaining and original to please the King.

These days the only way to please the King and not get rotten tomatoes thrown at you IS to rip off everyone else and make your music as unoriginal as possible.

Aside from that very slight difference, music has not changed at all over the centuries.