FAQ - MIDI-USB Interfaces

MIDI FAQ for beginners
Why do MIDI IN jacks connect to MIDI OUT jacks? Surely it makes more sense to connect a MIDI IN jack to a MIDI IN jack. After all, they’re both labeled IN. Same goes for MIDI OUT to MIDI OUT?
- The accepted way actually makes a lot of sense. Think about it. You want MIDI data to go out of your controller and in to your sound module. After all, you wouldn’t connect the audio out jack of your sound module to the outputs of your mixer, would you? No, you connect the audio output to an audio (mixer) input. And then you connect the mixer outputs to the inputs of your amplifier. And then you connect the amp’s speaker outputs to the speaker inputs. Same thing with MIDI. Think of MIDI data as “flowing” in the same way that audio signals “flow” through your audio system.
How to Connect MIDI Device Correctly?