Did you try to make executable file with the music you composed with BR808 ?
It is in Export tab and Export EXE button. I have heard that internal event recorder on the Export tab may not work properly. When I do it that way and launch created .EXE file, all notes start, but there is no Note Off/Note Cut and as the result all notes sound continuously. I tried to do it by exporting everything to the .MID file first, directly from the DAW and then importing to BR808 by clicking Load MIDI file on Export tab and then clicking Export .EXE button, but unfortunately the result is same. All notes sound continuously. Can you please check it. Maybe you will work out how to do it properly.
There's an explanation on Benjamin's blog page as to why browsers' anti-malware might be triggered trying to download things (demoscene "dirty tricks", not actual malware), but it might be nice for people looking for this to be hosted on a site that hasn't been flagged by algorithms.