The details are here:
https://groups.google.com/forum/#!topic/tonic_audio_users/z-lMzuv1L-8
Date: March 26th 2016
Time: 10AM Eastern Standard Time (4PM CET+1 = Berlin, Madrid…)
Place: https://meet.jit.si/tonicaudio
Why: TonicAudio is not currently maintained, and we want to keep it alive 
We will discuss with one of the authors and take notes. Sorry for the short notice, it was decided only yesterday.