What does NNS stand for?
NNS stands for Nashville Number System, which is a way of writing chord progressions using numbers based on their position in the key instead of letters.
In the key of G, here's what each number from the Nashville Number System maps to standard chord letters:
- G = 1
- Am = 2
- Bm = 3
- C = 4
- D = 5
- Em = 6
- F#dim = 7
No chords or notes change, just the label used to reference them.
Related glossary terms
- Chord chart - shows what chords to play for a song
- Walkdown - a chord pattern connecting chords using slash chords