Oh, I've fathomed that very deeply, and from what I've gathered, it would've been an amazing album. Emergency definitely would've been on it, probably You Wear Your Dresses too. I know Been So Long would've been on it, because that was recorded during the same sessions as Mexico and Saucers. Uncles Sam Blues would've been on it too, and maybe bits of Blows, like Starship and Let's Go Together, or A Child is Coming. Definitely Mau Mau... I know there's other songs from that time that were also recorded and have yet to see the light of day. I've even considered what the album art would've been, and I think it's in the lyric booklet that came with the vinyl copy of Blows, that cool alien-looking head that Grace drew, with the Jefferson Airplane logo-like thing in the top left corner. It would've been a very cool album...
Hide, Witch, Hide!
The Good Folks come to Burn Thee
Their Keen Enjoyment hid Behind
The Gothic Mask of Duty!