C phrometheus scale
The C phrometheus scale consists of the C (Perfect unison), D (Major second), E (Major third), F# (Diminished fifth), A (Major sixth) and A# (Minor seventh) notes.

How to play the C phrometheus scale
- Find C (Root) on the piano keyboard
- Play D (Major second) — 2 semitones above C
- Play E (Major third) — 4 semitones above C
- Play F# (Diminished fifth) — 6 semitones above C
- Play A (Major sixth) — 9 semitones above C
- Play A# (Minor seventh) — 10 semitones above C
- Play all 6 notes in ascending order to perform the C phrometheus scale