I may be dumb, but using the audio player to trigger submaster flash commands, at time points on the audio waveform, I get lights stuck on when I ask for a flash.
Changing the submaster mode of operation (Normal, On/Off or One On) has different results but none will allow a flash.
I realise it is still experimental, but if this glitch could be overcome it would make a superb DMX sound sequencer like Lite O Rama for controlling holliday lights