Only the order of tones and semitones is different. Both keys have the same key signature, shown here:. Because they share the same key signature and the same notes, it is common to modulate or change ...

Play these notes starting on C and you're playing the C major scale (also known as the Ionian mode – the 'first' mode). Start on D and you're playing the second mode (D Dorian, as it happens). By the ...