Peltoniemi Hintrikin Surumarssi played by Clive Williams on Melodeon

I'm really still learning this tune, so this is where I've got so far (Melodeon.net theme of the month tune, so it's now or never recording!). I've learned this off Frigg's (ace Finnish band) recording, and the title translates (roughly) as The Sorrowful march of Hintrikin Peltoniemi - what's not to like? A traditional Finnish tune, which had lyrics added to it (you don't want to listen to that; listen to Frigg's version instead). I've listened to it goodness knows how many times, and I still can't figure out how it's structured. Frigg's version lasts 4 min 30 after their intro (which I miss), and mine lasts 3 min 23, so either I'm playing very fast, or I missed a bit! Still a work in progress. Played on a Castagnari Mory in D/G, in the key or E minor (roughly).