Hi, community! I have decided to get into some basic (really basic) music production using sony acid music station. I have a 3 yr old MIDI keyboard and one MIDI interface. The interface has one MIDI in and one MIDI out connection and a USB cable for the pc. The keyboard has one USB connection (for pc), one MIDI out, a sustain pedal port and a power supply port. There is no MIDI in. Now I guess that I'm supposed to connect the keyboard to MIDI in (keyboard MIDI OUT to MIDI in interface) without connecting the keyboards USB port to the pc. Is that correct and what do I lose without having a MIDI in (keyboard) to connect to MIDI out (interface)?