I think his lowest vocal is either the "Deep Down Inside" in You Ain't The First, or the low part he sings in Locomotive. It's pretty low, at the end near the "Love's So Strange", he goes so low that its blending in with the music. You have to really listen to it. Its the line "If love is blind I guess I'll buy myself a cane" and he sings that with all three voices like the other parts, but he holds the word "cane" longer than all the others and then he says "yeah" at the end. I think that might be his lowest vocal, like I said its so low that it pretty much just blends in with the music.
Thanks. as I said above, I'm leaning toward the idea that "Deep Down In
side" was the lowest then.
It's a toughie to distinguish the bass vocal from the bass guitar on locomotive.
I think "cane" is B2 and then it goes like
Love Ab is Eb so Eb strange B--- if he sang this B as B1 in unison with the main vocal, well it is lower than D#2..... B1
but....I donno if he did. I can't really hear the note.