16
votes
4answers
3k views

If Für Elise is in Am why there is a D# in it?

Für Elise intro starts with E D♯ E D♯, Wikipedia says the key is Am. What scale does it fit? Is it like a blues scale where D♯ is a flat 5? Why D♯ is used in the sheet music? Is it easier to read ...
9
votes
4answers
1k views

What use is knowing how many sharps or flats a key signature has?

Books and articles I've read on learning key signatures seem to focus on mnemonics that tell you how many sharps or flats the key has, but I don't understand how knowing B Major has 5 sharps helps you ...
17
votes
7answers
5k views

Why does the Dorian mode on C have two flats?

I'm studying scale modes and I just found on Wikipedia that the Dorian mode on C has two flats... Why is this? Because the Dorian mode is just the major scale (Ionian) starting from the second ...
9
votes
4answers
972 views

Is G sharp major a real key?

I'm mostly self-taught, so I don't know much in the way of theory beyond the basics. I have heard of G sharp Major a few times. I believe a scale in the key goes as such: G♯, A♯, B♯, C♯, D♯, E♯, Fx, ...
14
votes
4answers
2k views

With sheet music, how do you determine whether the song is in the major key or the minor key?

For example, if the key signature on the left doesn't have any sharps or flats then it could theoretically be in either the C Major scale or the A Minor scale. How do you determine which one?
25
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 ...
30
votes
9answers
3k views

Key signature for writing in modes other than major and minor

I have trouble deciding what accidentals to put in the key signature for pieces in dorian, phrygian, lydian or mixolydian modes. There seem to be tradeoffs associated with each choice. For example, ...