The tablature system used in this font has been based upon that outlined by Jean-Marie Londeix in his book, "HELLO! Mr. SAX".
Each character maps to a specific key:
- s (stands for sax) : The full empty graph
- 1, 2, 3, 4, 5, 6, 7 : The center keys, 7 being the low C
- 8, 9, 0 : 8va, low A, thumb catch
- x, p, d : X, P, Eb/D#
- f, c, a : Tf, Tc, Ta
- q, w, e, r, t : C1, C2, C3, C4, C5
- g, b, v, h : G#, low B, C#, low Bb
- "-" (hyphen) : The middle line