Interactive reference tools and the concepts behind every drill — free, no account.
The wheel of key relationships at a glance.
Every key's sharps and flats, on the staff.
The seven modes of the major scale, with audio.
The five box shapes across the neck.
What intervals are and how to recognise them.
Major, minor, diminished, augmented — the recipe of each.
Reading a chord symbol: root plus quality.
How chords move and why progressions work.
Every note on the neck and how to find it.
Reading standard notation on the guitar.
The five box shapes of any scale.
Octave shapes and the B-string offset.
The five shapes that map every chord up the neck.
