Ah,
after being stuck for some time found a solution within a few minutes after posting:

If I send these messages:
self._send(osc.Message(“/iannix/zoom 100”))
self._send(osc.Message(“/iannix/settime 2 2”))
self._send(osc.Message(“/iannix/play 1”))
it works !
It seems ‘play’ needs an argument that sets the speed; play 0.5 plays at half the speed..

is that a hole in the docs ?

ciao,

Joost.