The adaptation of a traditional, face-to-face course to an online format presents both challenges and opportunities. A face-to-face fundamentals course treating the science of musical sound and the methods used to code and transform musical sound using digital computers was adapted for online delivery. The history of the course and the composition of its audience are discussed, as are the decisions to create movies, web pages, electronic mail, and a paper textbook for the course. Practical choices for technology, which reflect the conflicting benefits of choosing simple versus more sophisticated technology, are outlined and the reactions of the students to these choices are discussed. An anecdotal comparison between an online and a face-to-face course section is offered, along with ideas for future development.