  We designed a visual interface for comparing different guitar tablature (tab)
versions of the same piece. By automatically aligning the bars of these
versions and visually encoding different metrics, our interface helps determine
similarity, difficulty, and correctness. During our design, we collected and
integrated feedback from musicians and finally conducted a qualitative
evaluation with five guitarists. Results confirm that our interface effectively
supports comparison and helps musicians choose a version appropriate for their
personal skills and tastes.
