Lately, I've been working on figuring out the bass part in "Maxwell's Silver Hammer." So far, I have the first two verses. I'd figured out the Moog part in the second verse back in November 2017, so now I have enough to make a recording worth it. I referenced The Beatles Complete Chord Songbook for the piano part; I'm not sure that what I have is entirely accurate (because I didn't play anything in the bass register), but it fills out the sound, at least.
This is just the second verse:
I don't yet have a Moog (it's near the top of my list of instruments to get, but it'll still be a long time before I can afford one), but I did the best I could to get close to that sound. I used a square wave sample on my Nord Electro 5, and I turned on the velocity filter and tried to play softly to get a mellower sound. It's a bit uneven, but it's the best I could do.