Universal_key
The universal key or universal scale is a concept employed in music theory in which specific notes or chord symbols in a key signature are replaced with numbers or Roman numerals, so that the relationships between notes or chords can be universally applied to any key signature.
For example, in the key of E-flat major, the notes of the scale would be replaced like so:
- E♭ becomes scale degree 1
- F becomes scale degree 2
- G becomes scale degree 3
- A♭ becomes scale degree 4
- B♭ becomes scale degree 5
- C becomes scale degree 6
- D becomes scale degree 7