I've just bought Roland RD-800 piano. I love it's sound and mechanics. However it turned out that it doesn't have a feature to record and playback midi files. So I cannot for example record one track, then play it back and record another or play along. I'm looking for a device that I can connect to the output of my keyboard and record MIDI or analog tracks. Then connect it back to MIDI in of the keyboard to play them back using Roland's synthesizer. Also connecting mic, electric guitar, some monitor speakers to it would be great.
I'm aware that probably the most versatile solution would be to connect keyboard and other instruments to a PC. But I want a dedicated device with knobs, buttons for playback and such stuff.
What would you recommend in such scenario? How such a device is called? Does it even exist?