rank the songs on the zombies' "odessey and oracle"

Oh hold on though, on listening to the song, the high pitched tone, that could be a guitar!

It's hard to tell. I'm listening to the Marquis Enterprises Ltd. version on Spotify and it says "Mono Version," but that ain't mono.

Played as a lead guitar part here:

https://www.youtube.com/watch?v=at1rYffo8dw

thanks. it sounds more keyboardy than guitary to me on the original recording but it's also buried in the mix a little so who knows