Keys
Every major key with its relative minor, in circle-of-fifths order. Each page shows the key's seven diatonic chords with guitar charts, audio and the theory behind them.
no sharps or flats
1 sharp: F♯
2 sharps: F♯ C♯
3 sharps: F♯ C♯ G♯
4 sharps: F♯ C♯ G♯ D♯
5 sharps: F♯ C♯ G♯ D♯ A♯
six sharps / six flats — an enharmonic pair
5 flats: B♭ E♭ A♭ D♭ G♭
4 flats: B♭ E♭ A♭ D♭
3 flats: B♭ E♭ A♭
2 flats: B♭ E♭
1 flat: B♭