It depends on the number of strings and tuning.
4 strings E Standard 21 is ideal, 20 is doable. If I am doing D standard though at least 22 frets doesn't hurt for transposition for standard tuned songs.
For a 5 or 6 string might as well go 24 frets and get some more range out of it.
4 strings E Standard 21 is ideal, 20 is doable. If I am doing D standard though at least 22 frets doesn't hurt for transposition for standard tuned songs.
For a 5 or 6 string might as well go 24 frets and get some more range out of it.