3rd party functions and methods for use in the algorithmic composition Common LISP library slippery chicken.
Load any of the following files in your LISP environment. e.g. (load "/path/to/file/mark-first.lsp")
Then use in your slippery chicken piece like so: (mark-first +mini+ '(a ff))
Details for setting up slippery chicken and LISP can be found here: http://michael-edwards.org/sc/dw/doku.php?id=misc:how_to_install_slippery_chicken_by_hand