Re: Reasons why a LilyPond-to-MEI conversion should be developed

[Simon Albrecht]

On 24.10.2015 03:18, Paul Morris wrote:
> LilyPond’s internal scheme data structure is a good target for import and export

Or even more so the music stream internally used by LilyPond after Erik 
Sandberg’s work. IIUC there is some doubt as to how complete the 
features he describes in his master thesis actually are, but if they 
were this would be very promising. To quote what I already wrote to the 
mei2ly-application list:

“Erik Sandberg divided LilyPond into two separate modules, one to parse 
the input file and create the music stream, and another to read the 
music stream and layout the music (This change happened somewhat after 
2.6.0, IIUC). His master’s thesis, to be found at 
<http://lilypond.org/pdf/thesis-erik-sandberg>, describes this model. 
Notably, in chapter 7.3 he describes that he has implemented a facility 
(where to be found?) for separately running each of the modules.
Appendix D contains examples of music stream code, which is in the 
Scheme language.
And chapter 9 sounds very promising in terms of our current discussion.”

Do we have a possibility of contacting Erik and getting his opinion?

Yours, Simon