Sensomusic updates Usine to v5.80.015

Sensomusic has updated Usine to version 5.80.015.

This version features several improvements, including:

• Step by step mode added in the Piano Roll synchro to play MIDIfiles step by step.
• Option to disable PANIC codes sent to MIDI outputs.
• Better buffering system for audio files in the sequencer.
• All small bugs reported are fixed.