This thesis is part of the result from an explorative venture into understanding how saxophone multiphonics can be used as tools for improvisation and composition. The focus lies partly on how I found these sounds, personalized them and incorporated them into my artistic language, but more importantly, this is an attempt of thinking through art by letting the experience gained from making creative use of accidental occurrences affect future experience in an open-ended artistic process. This is done in two acts, solo-playing and duo-playing. With the solo-playing I listen for what these sounds suggest in themselves, and through this, create open compositions that are embracing their elusive nature. The duo-playing searches for sounds within sounds in a sonic map, constructed from a co-creative artistic process that allows us to zoom in on details, experience deep and spectral listening through vertical musical motion. Apart from the written words and the compositions, the artistic results consist of several recordings, presented and discussed throughout the text together with connected concepts and contexts revolving around saxophone multiphonics, composition and improvisation.