This equates to a major third interval, which gives a C major chord its major quality. Go to the next note in the C major scale, however - D - and form the diatonic D chord using alternate notes from ...

Here, we take things right back to basics by explaining what notes, intervals, scales and chords are, and how they’re all related. Each note has a duration and a pitch. In the piano roll ... B, C, C#, ...