If you have a wildly fluctuating yearly income, be prepared to provide returns even further back. You may even be asked to provide a detailed, written statement explaining any significant decreases over the years. I mostly approached this as “soloing” with the a cappella, using the instrumental as my “rhythm section.” But I did some improvising with the instrumental too, by looping, and by jumping around between cue points. I don’t consider this to be a polished work of art or anything, but I discovered some pretty cool sounds, even at my basic skill level. So I’m excited to see where this leads.