The selected song details when cued or playing (default view)
Click on the “Info” button and the ‘Key’ field is now shown:
Pressing Enter/Select on the ‘Key’ field automatically shows all matching songs with the same Key as the current playing/cued track on the player.
Click on the “Browse” button at the top of the player, scroll down the fields to ‘Key’.
Press Enter/Select and you can now choose which Key to list all matching songs for.