2
votes
3answers
86 views

Picking a key for a song and how to use the notes in that scale? [on hold]

So just to make it simple. When you pick a key for a song and you use the notes in that scale, do you only use those notes for all other instruments? And does the octave of each note matter? Or as ...
2
votes
1answer
56 views

Why a composition is made in a certain key [duplicate]

Why a composer would decide to write certain work in let's say D flat rather than D? If some of the elements have certain limits in their pitch, especially singers, it may justify even a semitone of ...
4
votes
2answers
224 views

Why do so many pieces written in a minor key sharp the 7th?

I've been going through several pieces (mostly of Bach, but also others) and I noticed that very commonly, the 7th is sharped when played coming down from the tonic. Examples: Little Fugue, Toccata ...