Key
Scales in C
Major
C Major
Minor
C Natural Minor
C Harmonic Minor
C Melodic Minor
Pentatonic
C Major Pentatonic
C Minor Pentatonic
Key
Chords on C
C majorC E G
C minorC E♭ G
C diminishedC E♭ G♭
C augmentedC E G♯
Intervals
What each interval does
The tritone
Chords
How chords are built from a scale
Scale pages
- Hear itEvery scale played, in the key you chose.
Theory pages
- Reading roman numeralsChords named by where they sit in a key.
- Chord substitutionKeep most of a chord and change one thing.
- Harmonising a melodyChoosing the chords to put under a tune.
Modes
- IonianMajor by another name.
- DorianMinor with a lift. Jazz and funk.
- PhrygianThat flat 2nd. Dark, Spanish, heavy.
- LydianA sharpened 4th. Floating, cinematic.
- MixolydianMajor with a flat 7th. Loose and bluesy.
- AeolianNatural minor by another name.
- LocrianUnstable by design. Rarely home, often useful.
Other
- BluesPentatonic with one note smuggled in.
- Phrygian DominantHarmonic minor's fifth mode. Desert heat.
- Whole ToneSix equal steps. No gravity.

Key of F♯

Major

The reference point. Bright, resolved, and the ruler every other scale gets measured against.

Same seven degrees, lowered where it counts. Where most rock and metal actually lives.

Five notes, nothing to trip over. The backbone of blues and rock lead playing.