Hi guys, I realise it's an old thread. Does anyone know what midi command the HD500x uses to set it's tap tempo? I want to send a command from my ipad using bluetooth midi to set the tempo to my backing track. the command will be embedded in the backing track/lyrics program. I'll like to avoid simply sending a command to change HD500x patches as that would require many duplicate tones with just the tap tempo saved at different tempo. Any ideas?