scribbu ¶The set of sub-commands sribbu offers, or could offer, is
small in comparison to the number of operations one could possibly
hope to carry out in managing ID3 tags. Sooner or later (likely sooner)
you will want to do something you can’t accomplish via a sub-command.
For that reason, the bulk of the work on scribbu has been
exposing the library’s functionality to a first-class language like
LISP (See The Guile Reference Manual.), to enable
scribbu users to build their own solutions.