Being somewhat insane, I decided to find a work around for this aspect of recording using an audio style. Merely record the song using the midi recorder, which will record an audio style. Then, you can merely record the midi file you created using the audio recorder. As far as the onboard USB audio recorder knows, it's just another midi file. The recordings come out exactly the same. Oh, almost forgot, in doing it this way you can also either record your vocals, or some additional right hand voices, similar to multi-track recording techniques. Neat!

Cheers,

Gary