Toto - Africa Piano cover (Korg M3) video free download

The video transition on the solo part is there because

the only way to record 2 separate combis in a sequencer is to do

it one at a time (you can't record combi switching in the sequencer).

There's one 8-part combi for the verse/chorus, another 10 part combi for the solo, and the pads are used to avoid note cutting when running out of polyphony. (10 programs in a combi, most of which are dual OSC + a sustain pedal can easily do that :))