fix #25062: crash with wrong(?) lame_enc.dll
expose every action to OSC
fix #24214: fixed previous chord command
Merge pull request #803 from Jojo-Schmitz/mp3

fix #25062: crash with wrong(?) lame_enc.dll
Merge pull request #804 from BartlomiejLewandowski/24214-previouschord

fix #24214: fixed previous chord command