The first part of this track is great, especially in terms of the chords, melody & backing vocals. It's kind of a shame it doesn't go on longer. If it wasn't for how the song had to be fit into the plot of a story, it might have been written so that it returns to the first part at the end, with the second part basically being a midsection instead.
"The song was developed several years before its release and was even played live under the title The Light in 1970. [The same applies to Anyway, which can be found as a kind of early version or demo on the Jackson Tapes under the title Frustration]."
That's actually a little misleading, because "Lilith" uses only a small part of the almost 9-minute "The Light."
You can also hear parts of The Colony of Slippermen and The Battle of Epping Forest in The Light.
The story behind The Light always reminds me of Bad Day by REM (which was wrote under a different title and only recorded as a demo in 1986; released as a successful single in 2003). But more interestingly, you can hear how the original demo morphed into It's the End of the World as We Know It.
Sorry for the off-topic