
So you can't, for example, transpose a piece from C major to D minor (or even to C minor) without changing it a great deal. Music in minor keys has a different sound and emotional feel, and develops differently harmonically. But music that is in D minor will have a different quality, because the notes in the minor scale follow a different pattern and so have different relationships with each other.

So music that is in, for example, C major, will not sound significantly different from music that is in, say, D major.

In each major scale, however, the notes are arranged in the same major scale pattern and build the same types of chords that have the same relationships with each other.
