Open Tuning Conversion

[Martin Seng Hin Yew]

Dear lilypond users,

I'm copying some fingerstyle guitar score. Most of the songs are in open 
tuning (like D A D G A D) and crosstuning (like E-B-E-G-B-E). The 
notation is hard to read because it is totally different from standard 
tuning. I'm refering a standard 6-strings guitar.

I'm asking, is there a command to convert the altered notes, to standard 
note (e.g. the 2nd string 1st fret should read C in score, not A#) but 
the guitar remains DADGAD tuning?


Regards,
Martin