C Magic chord/A#
The C Magic chord chord consists of the C (Perfect unison), C# (Minor second), F (Perfect fourth), F# (Diminished fifth), A# (Minor seventh), C (Perfect octave), D# (Minor tenth) and F (Perfect eleventh) notes, with A# as the bass note.

How to play the C Magic chord/A# chord
- Play A# as the lowest bass note in the left hand
- Find C (Root) on the piano keyboard
- Add C# (Minor second) — 1 semitone above C
- Add F (Perfect fourth) — 5 semitones above C
- Add F# (Diminished fifth) — 6 semitones above C
- Add A# (Minor seventh) — 10 semitones above C
- Add C (Perfect octave) — 12 semitones above C
- Add D# (Minor tenth) — 15 semitones above C
- Add F (Perfect eleventh) — 17 semitones above C
- Press all 9 notes simultaneously to sound the C Magic chord/A# chord