Raspberry Pi as a MIDI Host/Bridge/Router
This is the problem - many newer keyboards do not have 5 pin MIDI sockets and instead use USB to transmit and receive MIDI. This is understandable given many users just use the USB socket on their computer to connect to sequencers etc. The keyboard I'm using is the Yamaha P121 which is the 73 key version of the P125. Yamaha P121 As you can see from the rear panel there are no MIDI sockets so cannot be used to play another keyboard or send data to MIDI equipment via 5 pin DIN. I want to use the P121 to play my Nord Electro 6D. This has the following benefits: You can play 2 sounds at once on the Nord without resorting to key splits The Electro 6D has a 'waterfall' keyboard whose action and key shape are based on the Hammond organ. This is a very fast and light keyboard actions great for playing organ but the wrong weight and feel for acoustic or electric piano. I have the 61 key version limited to 5 octaves so I have to use the octave shift