Kain taught me that you can make very interesting things happen when you start with a dumb joke and then forget not to take it seriously.
The band we were starting together was based around mashing up VGM tracks with rock/metal songs. It came about when I casually mentioned that After Burner sounds like Corneria and they could totally transition into each other. We spent the next 2 hours brainstorming a theoretical structure for such a song, and adding a couple others in the mix for good measure (months later, he would PM me the SilvaGunner video that plays After Burner on Corneria instruments: "they're on to us", he said).
Then he showed me his MM2/Seek And Destroy YTMND, and we had a good laugh. Next thing I knew, he'd written "Seeking Flash Man", a medley of the entire MM2 soundtrack and Metallica songs. With lyrics. It's 15 minutes long. It's the only thing he wrote that I have a GP5 of.
One day, he tells me he brainstormed with Crimson and he has the best band name ever: we're going to be called "Panterranigma". I wholeheartedly agree, and say our first album's title should be "2005 called, it wants its megamedleys back." He says no, he's aiming for the Shizz Trifecta. He was writing our namesake song, and refused to show it to me until it was completed. I never got to hear it, but I can only assume it's exactly what you think it is.
There's tons more where that came from. He wrote a Metroid-themed Bohemian Rhapsody variant just so that he could end it with "Anyway Other M blows..."
To hear him talk about it, it was the easiest thing in the world. He'd let me listen to his WIP tracks, but getting him to actually share anything (even with me, his bandmate) was like pulling teeth. Because he wanted everything to be completed, polished, perfect, from the get-go. He wanted everything to hit you with the power of a 1990s Dream Theater album, and he wouldn't show anything until it was ready to achieve that.
That's the caliber of arranger we lost, and I miss him for that too.