Guitar music written for non-standard tunings might be very hard
or impossible to play in standard tuning. There is no guarantee it
will
sound the same either, as open strings and barre strings in
non-standard tunings usually add a particular timbre to the music.
If you are serious, learn it in the proper tuning. JP has used DADGAD
on many LZ tracks and it can sound quite magical.
HTH, Glenn.