Forms of Music.

[japjisingh]

I know it's quite a silly but I've been getting silly answers everywhere.

So the question is-suppose we have a piece with ABA form with the last A having minute changes in that section. And someone asks me total NUMBER of main sections in that particular piece so would it be 2 main sections or 3 main sections?

[perfect_pitch]

Technically it's three sections since the A section is repeating at the end.

Just like a Rondo (ABACA). You wouldn't say a Rondo has 3 sections, because it technically has 5.

[japjisingh]

Thanx a lot! That helped! Btw I read some form style which had ABA' or something like that. So what's A'?

[keypeg]

Thanx a lot! That helped! Btw I read some form style which had ABA' or something like that. So what's A'?

I think I ran into that yesterday.  My theory book introduced binary and ternary music.  In the binary there was "rounded binary" where A repeated, but it ended in a cadence of a different key, while in ternary the A also repeated, but it stayed exactly the same.  So I was told that the first one should actually be called ABA' because the second A was not exactly the same as the first A.  So I'm thinking that in ABA', the A' means it's almost the same but not exactly.

[japjisingh]

Hmmm... And any idea how would we speak it? ABA'?

[stiefel]

ABA' is spoken, " A, B, A prime."  The ' is read "prime."

[japjisingh]

Thank you!