  Early experiments have suggested that program auralization can convey
information about program structure [8]. Languages like Pascal contain classes
of construct that are similar in nature allowing hierarchical classification of
their features. This taxonomy can be reflected in the design of musical
signatures which are used within the CAITLIN program auralization system.
Experiments using these hierarchical leitmotifs indicate whether or not their
similarities can be put to good use in communicating information about program
structure and state. (Note, at time of going to press experimental results
could not be included. These will be presented at the conference and included
later.)
