When I listened to Discovery a couple days ago, the opening part of "Wishing" sounded like it would be pretty easy to figure out. I'm almost certain that it's done with a Moog in the original recording, but I don't have and can't afford one, so I used some other synth voice on my keyboard.
This afternoon I was playing around with this again, and I think I learned the guitar chords too, but I'm suspicious of a few and have some other phrases in the song that I want to look into, so I recorded just the opening for now.