Oct 7, 2019
The use case is to get sound from my Yammaha Clarinova piano at the same time as from an iPad app.
Thanks for posting and welcome to the Bose Community. I would love to assist you with this!
This isn't something that is possible unfortunately as the QC35 can only connect to one device at a time.
I hope this helps and if you have any other questions please don't hesitate to ask.
Hector B - Community Support