Non is a modular Digital Audio Workstation. It consist of four modules : Timeline, Sequencer, Mixer, and Session Manager. The suggested workflow is to open Session Manager first, to record and save your session : which modules did you launched ? what actions did you do with them ? etc. This modular setup helps making Non a robust software : if Session Manager doesn’t crash, a process that crashes only means the sound will be disabled until Session Manager restores this process.