Need help creating Scheme functions to automate includes of many scores in a project

[Nah]

I have a project with 100+ scores, each in their own file. I tried to 
create a Scheme function to \include each of them. After searching the 
archive, I got the general idea of why my solution isn't working. 
However, I didn't find something like a snippet that I could coax into 
what I want. I have programming experience in C, Python, etc., but I'm 
still pretty clueless with Scheme.

What I want is a function that does something like:
foreach fname #{ \include #fname #}

In Python, I would just read all the filenames in the directory, sort 
them, then run the foreach. Can I do something like that in Scheme? And 
how do I put the result in a form that will work with \include?