To record MIDI data, you will need some sort of input device. This is generally a MIDI capable keyboard connected to the sequencer via standard MIDI cables. You tell the sequencer to start recording, and then you play they keyboard to record the MIDI data. The great thing about MIDI is that if you
The wonder of MIDI is that it doesn't actually record sound like a tape recorder would, but rather it uses a tool called a sequencer that records only data that was used to create the sound.