1. MD-BT01 AND
2. A Win10 computer capable of Bluetooth v4 and BT-LE. I had to buy an inexpensive USB-Bluetooth dongle as my desktop didn't have that level of Bluetooth support.
Your Win 10 computer now has a software MIDI device ("loopMIDI") and the equivalent of a midi mapper (MIDIBerry) to connect to the paired MD-BT01 BT-LE input and output.
Mid iPlayer - > loopMidi -> MidiBerry -> Windows paired MD-BT01 device -> MD-BT01 -> Disklavier
You need Midi software able to map midi output to the loopMidi device, and also map midi instrument tracks (i.e. the piano tracks, though any other instrument will play thru the DKV synthesizer via BT LE). In my scoring software, Melody Assistant, I mapped the Midi track for the Midi piano to that loopMidi device in your player/editor rather than the built-in Windows Midi Sound. This took some trial-and-error.
But voila! I can hit the play button on Win 10 and have the Disklavier play wirelessly in the next room. I did say it was complicated, didn't I? Edit score, play, edit score, play. Mission accomplished.
NOTE: At first, the Midi stream was initially very laggy and sounded like a drunk pianist was at the keyboard. I had to turn off my ant-virus software (ESET) since it monitors inter-process communication for virus signatures and slows the midi stream.
Marc Kenig