Sorry, I forgot to answer. The song that Mr. Sondheim provided the lyrics for was never used in the show, so no, it wasn't recorded. I'm waiting for a Playbill from the show to see if a couple of things listed on the session tape boxes were from the show, or if they're just some shorthand for what's already on the album. I did write to Mr. Sondheim this very day about the song he did the lyrics for, and he said he'd look in his files to see if he had it. If he does, I'll probably take someone in the studio and record it - IF I'm allowed to do so by the licensor.
Here is the song list that I have
1) Po, Po, Po
2) Tavern Dance (Bouzouki Nights)
3) Zebikiko (Yorgo's Dance)
4) Piraeus, My Love
5) Golden Land
6) Love, Love, Love (Dropped After Opening)
7) I Think She Needs Me (This is the song that Sondheim wrote the lyrics but it is listed here)
8 ) I'll Never Lay Down Anymore
9) After Love (Dropped After Opening)
10) Birthday Song
11) Medea Tango
12) Illya Darling
13) Dear Mr. Schubert
14) The Lesson
15) Never On A Sunday
16) Heaven Help The Sailors On A Night Like This
17) Ya Chara
and
18) Take a Little Drink of Ouzo (Added After Opening)
Dropped before NYC opening
19) Her Eyes, His Eyes
20) Fugue
21) Fleet's In
22) Maressi
My source says that the cast album has everything except 1, 10, 14, 18 and it says taht the cut songs 19-22 are also on it but that doesn't sound right
There is an instrumental album release on United Artists. (Same as cast album) Conducted by Ralph Burns2, 3,4,7,8,9,12,15,16 and one theme titled "Melina" based on #12
There is a second Instrumental recording of the score of the EPIC Label2,3,4,6,9,10,12,15,17,21