Choose one of these commands to change the selected fret number.
0 (A)
1 (B)
2 (C)
3 (D)
4 (E)
5 (F)
6 (G)
7 (H)
8 (I)
9 (K)
10 (L)
11 (M)
12 (N)
13 (O)
14 (P)
15 (Q)
16 (R)
17 (S)
18 (T)
19 (U)
20 (V)
21 (W)
22 (X)
23 (Y)
24 (Z)
