microcontroller - Send and "read" a tone over the AC power lines

I would like to use this circuit to send a signal over the a live wire;

Assuming the live wire on the right carry the signal;

^{simulate this circuit – Schematic created using CircuitLab}

This would work? The signal can be between 1 kHz to 12 kHz.

PS. I have an electrician background, installing and maintaining equipment on 127/220/380/440V, so I understand the safety issues. I'm careful.