Abstract
Concerned by the impact of rising textbook costs on his students’ learning, Sean Butterfield wanted to create a free, web-based textbook for his undergraduate music theory course in the Lionel Hampton School of Music at the University of Idaho (UI). After being awarded a Think Open Fellowship from the UI Library in Fall 2017, he collaborated with digital infrastructure librarian Evan Williamson who had experience using static web technology to develop open source digital humanities projects. Williamson set up the website template hosted on GitHub, while Butterfield created the textbook content. Iteratively developed over several years while actively used in teaching, the project is now called Integrated Musicianship: Music Theory (IntMus).