It Works (The Way We Want)!

Awesome, awesome job. Got to borrow a Bluetooth headset off a mate, and, after the pairing process with my own generic Bluetooth dongle plugged into the PC, we were on our way.

The only thing required to allow BT-enabled audio was to set the BT-hardware as the default input device - with further tweaking, we could produce some audio feedback (transmitted direct to the headset), but for now things are very sweet - users bring their own headset, pair it to the installation, and sing along! Nice.

Feasiblility? Check!