It's really cool to hear how Mike sings the early versions of "Mike's Song" it's obvious he doesn't have a lot of experience singing and he sings it with a little more ferocity than he does later on.

I actually think Scarlet -> Eyes is actually quite good and the best thing I've heard yet from this era. The segue is also excellent they're obviously starting to figure it all out. Whipping Post has a nice very experimental jam with Mike all over it. Page is the most awkward he will ever sound which is very interesting to hear. The Other One is super rough during the verses but it has a nice little mellow jam at the end.

Overall just another stepping stone.