Groeten Wim, I have recorded quite a few songs with One Step Record. IF you want to get the left accompaniment really correct then you shift the split point up the kbd, This allows you to get ALL the written chords, like Eb maj 7/G. That chord is basically not possible with one hand. Listen to the bass chording on De Arabier (draaiorgel), it makes the music.
Regards,Denn.