This course on sound is designed to give learners an online interactive experience learning about the physics and mathematics of sound. The unit is certainly not exhaustive of the topic but is a start for students to learn by creating and recording with software such as Audacity and Visual Analyzer. My hope is that as time allows for myself and others and as the long tail of the internet reaches far that this can serve as a collaborative seed to a great moodle unit on learning the physics and mathematics of sound. The next block could include an experiment on open and closed pipes. Create and Share.