Re: Add option to indicate frets by letters in tablature (issue164063)

[demery]

What I am trying to say comes from my own experiences writing a gui
program to do tab typesetting on macintosh.

My software records {course,fret} data for each note in the score, and
pitch information for each course on the instrument (simplifying courses
with octaves as split play is very rare).

That internal data is mapped using user-selected tables (which can be
user-defined, tho I provide several) for - keybindings (gui input),
musical semantics, and display ligatures.

For ly, you have user-encoded textfiles which roughly correspond to marked
up data using my input keybindings, an Internalization of that data,
musical semantic tables, display tables.

BTW, I found it useful to map the index 0 to blank and 'no semantic' on
all those tables.
--
Dana Emery