Scales are a staple of musical life. If you learn a musical instrument, you end up playing them (sometimes seemingly endlessly!) and learning how they work is an important chunk of musical theory.
Not all scales are created equal. Western music relies on equal temperament, where the octave is divided into 12 equal parts, or semitones. However, our perception of the musical world as a whole is based on just intonation and the harmonic series. As a result, rather than all sounding the same, scales in equal temperament each have a different feeling. I once did a survey to try and find out composer’s favourite scales, but ultimately it depends on the piece in question. For example, I find E major a bit too ‘major’, but E flat major more rounded, with D flat major being a favourite. Minor wise, I’m not a huge fan of A minor, but E minor or C minor I do like, and D minor feels very traditionally ‘minor’.
The rest of the blog post can be found on the Cracked Voices blog.