Ellwood Colahan is Music and Performing Arts Reference Librarian at the University of Denver, where he also teaches a graduate music bibliography course at the Lamont School of Music under an adjunct appointment. He holds a BM in classical guitar performance, an MA in music theory, and an MLIS in library science, all from the University of Denver. His previous research includes issues in contemporary Balinese gamelan, metric conflict in Baroque music, the bibliography of classical guitar music, and applications of data sonification to library administration.