Audio Mostly is an interdisciplinary conference on design and experience of interaction with sound that prides itself on embracing applied theory and reflective practice. Its annual gatherings bring together thinkers and doers from academia and industry who share an interest in sonic interaction and the use of audio for interface design. This remit covers product design, auditory display, computer games and virtual environments, new musical instruments, and education and workplace tools. It further includes fields such as the psychology of sound and music, cultural studies, system engineering, and everything in between in which sonic interaction plays a role. The conferences are a lively and sociable mix of presentations, posters, and workshops and all papers are peer reviewed and published in the ACM Digital Library.