[dallaskruse]

The beauty of ABC is that it is a ASCII syntax (like chordpro). You can write your charts without any additional software simply with an text editor.

And there are some great (free) programs to turn this ASCII charts into PDF sheets or PS or SVG with all kinds of notation "bells".

If you can put key, tempo and so on into Finale, Sibelius and export it to MusicXML (I think all those notation programs can) it would show up in the converted ABC file
in the header simply as

%abc-2.1

X:1
T:Untitled1
C:Unknown composer
M:4/4
L:1/4
K:C

That's the minimum header 
T=Title
C=Composer
M=Meter
Ltandard length of a not
K:key

so it should be no problem to read this metadata for the MSP database.

Just to peak your interest.

I'm a lowly musician ... I don't understand how or what this is