Hey thanks I didn't need it after all.
>>What's the intent?
I never use tab so my bend file ""definitions.ily" has all the tab sections removed so it doesn't print tab- did that a long time ago. All works fine however a friend wanted to use the tab and couldn't do quarter tones. So I was going to hack the scheme but well .. i don't no scheme :) However i figured the midi doesn't play anyway so why not just use the interface and change it ?
Anyway long story short he can now use it with quarter tones to print his music.