1. Sorry for the formatting not being ideal, but I tried to do this as fast as possible (and it still took many hours over the last few days).
2. Also, I don't include unreleased cue timings, but I do give brief descriptions of most unreleased cues. Obviously it's tough to accurately describe music, so I ended up saying stuff like "there are some fanfares" a lot. But I hope you find it a bit interesting.
3. A note on Johnson's treatment of the score: It doesn't seem to me that there's very much microediting or tracking in the film! That's in addition to the great mix!
4. Overall, it doesn't seem like there's that much essentially unreleased music. Sure, there are a bunch of short cues we're missing, but not many full "sequences."
4. Some have said "The Battle of Crait" contains music that differs from the end credits (possibly a non-microedited version?) I wasn't really sure about that so I didn't deal with that here.
5. @CGCJ has done a nice breakdown of the OST chronology here, if you haven't seen it yet:
Main Title - unclear whether OST recording and film recording are identical, and whether either are new
Escape Part 1 - heard until about 2:45 on OST track; last few seconds are unreleased, but nothing too special; not sure if there are differences between OST and film version because our audio source cut off beginning few minutes of film
Escape Part 2 - Heard after Rebel Fanfare on OST; several differences between OST and film, most importantly the film's tracking in of the Luke's theme (main theme) statement from OST "Who Are You?" and omission of the first (short) Resistance march statement heard on OST, and the OST's omission of a heroic Poe's theme statement
Snoke Contacts Hux - Short, dark unreleased cue (not too interesting)
Return to Ahch-To - heard until ~1:45 on OST "Ahch-To Island"; OST has one minor microedit
Revisiting Snoke - identical to OST
We Need Your Help - heard from ~1:45 on OST "Ahch-To Island" until track ends
Who Are You? - heard until ~1:00 on OST "Who Are You?"
I Need Help - Unreleased (includes a typical quiet Force theme statement, and some nice but ordinary, and very short, elegaic strings)
They've Tracked Us - Heard at beginning of OST "The Supremacy," until Leia's theme heard; Film contains some extra material, including a quiet and unremarkable statement of Rey's theme, at OST 0:08 (before the music swells)
Chaos on the Raddus - Pretty short unreleased action cue; contains statements of Leia's theme and of Ren's theme (pretty similar to those found elsewhere)
Battle Continues - Opening heard on OST "The Supremacy" at ~2:00-2:30;ending (some nice short swelling music followed by mostly standard brooding underscore), is unreleased
Leia Uses the Force - Heard in full on OST "The Supremacy" from 2:30-end
Rose Spots Finn - Unreleased, short; contains one Rose's theme statement (similar to some on OST)
Fun with Finn and Rose - Nearly all is in OST track, with exception of short brass scare
Rey Connects with Ren Part 1 - Pretty short unreleased cue, nothing special
Rey Connects with Ren Part 2 - standard meditative Rey's theme statement and some dark brass scares; SOME of cue is on 2:00-2:36 of OST "Old Friends," rest unreleased
Training Begins - 2:36-end of OST "Old Friends"
Lesson One - identical to OST track
Raw Strength - short unreleased cue with very short but cool fanfare
Do You Know What Happened - short unreleased cue (uses Ren's two themes)
Arrival at Canto Bight - identical to OST "Canto Bight" opening; contrary to some posters' assertions, it seems like the transition to next cue is same in film and OST
The Casino - identical to rest of OST "Canto Bight"
The Fathier Race, and Spotting the Codebreaker - Unreleased (statement of Rose's theme, short fun scherzo, and finally the gorgeous Long Goodbye cameo!)
Rey Training with Lightsaber - Unreleased (bombastic Rey's theme statement)
Luke Remembers His Academy - Unreleased (includes statement of Han's theme, and some nice dark, elegaic stuff)
Maintain Our Current Course - Unreleased (dark and short)
Meeting DJ - OST "Who Are You?" (1:00-2:05)
Jailbreak - OST "Who Are You?" 2:05-end
The Stable - Very nice short unreleased cue, with some Resistance march variations and a calming tone, although ends with suspense tones leading right into next cue
The Fathiers Part 1 - identical to OST (ends at OST 0:56)
The Casino Starts to Shake - seems to be unreleased source music (short jazz lounge piano bit); unclear whether it's JW or not
The Fathiers Part 2 - identical to OST (starts at OST 0:56)
Anybody Need a Lift? - Pretty great unreleased cue with Rose's theme and some fanfares (plus, yet again, the Force theme)
Rey and Ren Chat Again - unreleased; dark and brooding
The Dark Water - Unreleased, and very short
The Cave - identical to OST (0:00-1:57)
Fighting in the Rain - Pretty long action opening unreleased, although OST has end of cue in "The Cave" (1:57-end)
The Sacred Jedi Texts - Identical to OST, although film seems to replace OST 1:15-1:30 with somewhat awkward tracking from somewhere
Dire Straights - Unreleased; Very short, but has some nice fanfares
We're Abandoning Ship, and Rey's Escape Pod - Unreleased, quite long; includes bombastic Rey's theme statement (and that cool trumpet bit Jilal pointed out)
Relieving Holdo - Fades in as previous cue ends; has interesting little Force theme variation and includes innocent Luke's theme (main theme) statement
You Will Turn - unreleased
Rey to Snoke, and Infiltrators Caught - Beginning on OST "A New Alliance" (:00-01:07); pretty great ending with Rose's theme and Resistance march is unreleased
Leia Stuns Poe - Extremely short; includes short Luke's theme (main theme)
Someone Needs to Stay - Totally unreleased; Nice innocent Luke's theme (main theme) variation, recalling ANH; also nice Force theme variation, and concluding with a big performance Holdo's lovely "desperation" theme
Snoke Tortures Rey - Unreleased (includes Emperor's theme)
Destroyer Hangar, and Resistance Caught - Unreleased, and pretty long (starts with great short march based on unreleased "You Need a Pilot" from TFA); also has some nice fanfares
The Death of Snoke - OST "A New Alliance" 1:07-1:51
Fighting the Guards - OST missing opening, but rest of cue can be heard 1:51-end in OST "A New Alliance"
Let It All Die - Unreleased (lots of low Kylo B theme and a bit of Rey's theme)
Cruiser Prepares to Jump - Pretty great unreleased little action cue, although seems fairly similar to a lot of other stuff on OST
Execution, and Holdo's Sacrifice - Sounds identical to OST "Finale" 5:30-6:25, although OST seems to have a few extra seconds of music at end (probably recorded for end credits?)
"Chrome Dome" - Identical to OST
Destroyer Escape, and Let's Finish This - Unreleased; Pretty nice Rose's theme heroic statement
Shut the Door - Short unreleased action cue, with nice Rose's theme statement at end
It's Now or Never - Unreleased; portion almost identical to "The Plan" from TFA (similarly unreleased; they are semi-fugato low string variations on Resistance march)
We Have to Buy Time - OST "The Battle of Crait" start-3:46; fades right into next cue in film and OST
Falcon Chase - OST "The Battle of Crait" 3:46-4:30; fades right into next cue in film and OST
More Fighting - OST "The Battle of Crait" 4:30-5:28; fades right into next cue in film and OST
Finn's Daring Ride - OST "The Battle of Crait" 5:28-end
I Saved You - Unreleased; Sad variation of Rose's theme
Reunion - identical to OST "The Spark" start-2:15
Facing Evil - identical to OST "The Spark" start-2:15
That's Enough - Unreleased underscore with some fanfares and Kylo's B-theme
The Duel Begins - Unreleased; Contains nice quiet variation of Poe's theme (pretty similar to that in "Peace and Purpose")
Following the Critters - Unreleased; short but pretty great (includes very nice heroic rendition of Rey's "intro" chords)
The Last Jedi Part 1 - Identical to OST start-1:30; next cue begins immediately after this one ends
The Last Jedi Part 2 - Identical to OST 1:30-end
Peace and Purpose - Identical to OST
Legends - OST "Finale" start-0:36
Shooting Star - OST "Finale" 0:36-1:05
End Credits - This wasn't in our audio source (see Jay's analysis, though!); obviously, you can find at least a version of the credits music in the final OST track
NOTE: The OST's "The Rebellion is Reborn" is a concert suite.
