Hi,
No patch for my Yamaha. I also have a Yamaha PSR340 but that does not have usb output.

The video is pretty good.
Trying to compare the features he was using to Power Tracks.
I did have the Re-Route MIDI playback to default Dxi/VSTi Synth not checked.
That allowed me to hear my playing back though the keyboard speakers.
Not sure what in PT is like the other items he was refering to though.

I did follow the MIDI section in the owners manual as you suggested. Did not seem to help much.
One of the choices might have helped but reduced the volume so low I can barely hear it.

So still working on this. Looked at some Power Tracks videos also, none really explain how to get the MIDI actually working, drivers, etc.
Nice if the had a tutorial that shows how to connect a keyboard nad get it working.
Seems like this is all guess work.
Jeff