Path
What to study before Modes
The seven rotations of the major scale, each with its own centre and its own colour. Below, the concepts that come before, in the order in which one explains the next. Signed in, you see the same path minus what you already hold: your path.
Notes and semitones
The seven letter names, the accidentals that alter them, and the semitone as the system's smallest step.
Intervals
The distance between two notes, measured by a number taken from the letter names and a quality taken from the semitones.
Major scale
Seven degrees built on a fixed sequence of tones and semitones, and the reference everything else is measured against.
Modes
The seven rotations of the major scale, each with its own centre and its own colour.