1. multiple-value-variants
    multiple-value-variants gives access to multiple-value variants of operators through one macro: multiple-value
  2. multisets
    Library of set operations on multisets
  3. Music
    Free software related to creating or manipulating music in Common Lisp
  4. Music Mind Machine
    The Music Mind Machine research group at the Universities of Nijmegen and Amsterdam have a variety of Common Lisp software available for the computational modeling of Music cognition including:
  5. mw-diff-sexp
    A Common Lisp library to calculate a naive Levenshtein-like edit distance for s-expressions
  6. MW-EQUIV
    mw-equiv provides one of many possible equivalence relations between Common Lisp objects, similar to the standard EQUAL function family, but extensible
  7. my-util
    Tomoyuki Matsumoto's common lisp utilities
  8. myweb
    simple web server written in common lisp for educational reasons (tested on sbcl but should work with other implementations)
  9. NactivityPub
    ActivityPub & ActivityStreams support library for Common Lisp
  10. Named multiple-values
    Named-multiple-values is a piece of macrology that enables one to deal with