How to access objects/content from another lilypond file: microtone symbol for raised flat

[Kate Sekula]

I am trying to use microtone notation and need the symbol for a raised flat.  
I have the lilypond document from the following page saved as microtone.ly in 
the same folder as my main document.  

http://x31eq.com/lilypond/regular.ly

Is there a way to access the object for a raised flat (esih) from microtone.ly 
without using the the /include command?  I don't want to print microtone.ly 
within my main doc., I just want to have access to its contents.