I can't remember if I already knew the bass part or not, but it's only one note (A), so that was simple to either learn or re-learn. I knew I was going to write a post here at least to mention that the slide guitar and recorder have the same notes, but I didn't know if I should record a version because - while I'd have the bass part - there's a lot of space between those two elements. In order to fill out my recording, I learned the electric piano part and the acoustic guitar chords. My recording still feels a bit empty, but I guess five parts are better than only three.
I'm pretty sure the recorders are double-tracked in the original. One might be lower than the other, but all I have is a soprano recorder, so doubling that is the best I could do. I'm looking into getting a tenor recorder, although I'm not sure that's what's used in the original recording.
I double-tracked the acoustic guitar and the slide guitar. I'm not sure that's accurate; I just thought it would sound better. I don't have the delay effect on the slide guitar because I simply don't know how to do that yet. I briefly played around with some effects in my recording program, but even the shortest delay I could get was too long compared to what's in the recording.