.* TODO
. * use hash tabs iso. alist_ for elt property?
+. * tremolos.
+. * internationalize GUILE msgs.
+. * unbroken marks.
+. * put property test files in refman.
+. * fix slurdotted
. * alignment within @itemize
+. * slur dashing.
. * junk dstream output.
. * agressive type-checking for SCM stuff.
. * script columns