5
votes
2answers
70 views

Error computing prime form of a pitch class set

I'm working on coming up with prime forms. I've been using this calculator online to check my work. My problem is that the prime form I compute for a certain PCS doesn't agree with the calculator, ...
23
votes
8answers
2k views

Is it possible to write a song without a key?

"This song is in F Major", "That song is in A Minor", "This song is in D Minor, but modulates to F Major in the middle", etc. Can we say "This song has no key"? Are there songs that have/follow no ...
13
votes
4answers
745 views

What is an atonal mode?

I got an album by Ornette Coleman and Pat Methany, "X", and on the linear notes it talks about atonal experiments within the song structures. Are there scales and chord progressions that go along with ...