DSSI 1.1.1 Release Notes DSSI is a plugin API for software instruments with user interfaces, permitting them to be hosted in-process by audio applications. It is intended to be simple, GUI-toolkit-agnostic, and slightly biased towards familiarity with MIDI. The DSSI distribution package contains a JACK/ALSA-sequencer reference host and some plugins as well as the specification and header. Changes: The only change since the 1.1.0 release is a fix to a crash on startup in one of the example plugins (less_trivial_synth).