John Lennon
Gone from this place

God (acoustic demo)
I'm stepping out (extended alternate version)
Real love (piano demo 1)
Going down on love (studio run-through)
Pill
GOne from this place
Dear Yoko (early vocal)
Memories
I'm losing you (acoustic demo)
God save us (acetate)
I found out (guitar demo - take 2)
Borrowed time (rough mix)
Rock ISland line
I'm the greatest (Imagine era studio demo)
Starting over (acoustic demo - take 3)
Serve yourself (piano demo)
Well (Baby please don't go) (Imagine era studio jam)
Cold turkey (acoustic demo 1)
Clean up time (rough mix)
Beef jerkey (studio run through)
Gone from this place

While I like this Vigotone series, I'm not sure if any of these performances is exclusive. Anyway, this is a famous and important collection, always quoted as core item.