Section 1 is always the same, but after its done it can lead into two different Sections: 2A or 2B. Section 2 A (if chosen) can then go onto either Section 3A or 3B which both end the song or Section 2 B (if chosen) can go on to Section 4.
(mp3 is of Section 1 -> Section 2 A ->Section 3 A)
3.A song that incorporates a solo that varies from listen into its predefined/static instrumentation.
(Solo is just an arpeggiator set to random on different minor keys)