vim script for transpositions

[jah knee]

hi

i have written a short vim script that does automated transpositions of 
lilypond source documents. right now, it works by running a function 
like this

: BflatTrans(<startlinenumber>,<endlinenumber>)

i have also written EflatTrans() and HalfStepDownTrans(), but more could 
be added

i am happy to contribute it to the lilypond code base, if it may seem 
helpful.

if i am writing to the wrong list, sorry.

i use lilypond all the time and think it is pretty amazing- thank you!