Here is a list of (perhaps) all the known non-album Pink Floyd tracks. Many of these are available illegally. Some have never been heard by the general public. Some may not even exist.

Across the Universe (the Beatles' song)
Waters, on 1986 BBC special for John Lennon with help from Andy Fairweather-Low

Ain't No Sunshine
Bill Withers song performed on soundchecks on the About Face tour
Another Brick in the Wall (2)
rerecorded by Roger for a Berlin Wall promo CD
Apples and Oranges
single
Arnold Layne
single
Astronomy Domine
live, from "Take it Back" single
Baby Blue Shuffle in D#
jam, became Part 1 of "The Narrow Way"
Get Back to Radio
KAOS b-side
Biding My Time
from Relics
Big Theme
"La Carrera Panamericana"
Bitter Love
aka "How do You Feel," unreleased 1975
Bob Dylan Blues
unreleased Barrett track from 1970
The Bobbin' Sound
unreleased track/working title for a piece from the ASoS sessions, February
1968
Brain Damage
early studio version, June '72
Bring the Boys Back Home
extended version, back of "Tigers..."
Candy and a Currant Bun
back of "Arnold Lane"
Careful With That Axe, Eugene
back of "Point Me At The Sky"
Carrera Slow Blues
"La Carrera Panamericana"
Come In #51, Your Time Is Up
Zabriskie
music from "The Committee"
a movie they did incidentals for
Country Theme
"La Carrera Panamericana"
Crumbling Land
from Zabriskie Point soundtrack
Cymbaline
"More" movie version
Dance with the Ferraris
instrumental from 4 Dec 1989 by Mason+Fenn at Essen Motor Show
The Death of Sisco
possibly "Disco" or "Cisco," a Wall outtake
Deep in the Blues
performed by Gilmour at 1984 Guitar Greats concert
Embryo
Ummagumma outtake *
Fingal's Cave
Zabriskie outtake
Flapdoodle Dealing
unreleased early live piece
Flight from Reality
from late 1975, "very strange"
Gimme A Break
Chuck Berry song the Floyd covered
The Gnome
rare mix on back of "Flaming" single
Great Gig in the Sky
Nurofen advertisement, re-recording with Clare Torry
Great Gig in the Sky
early live version, w/radio evangelists
Going to Live in LA
Waters KAOS single
Heart Beat, Pig Meat
Zabriskie
The Hero's Return part II
Parts 1 & 2 on back of "Not Now John" obscured version single
Highway Song
unreleased track recorded in 1969
Hollywood
More outtake (Gilmour) **
I Can Tell
unreleased early live song
I Can Tell
blues jam from the KAOS tour.
I Get Stoned
demo recorded at their first session
In the Beechwoods
unreleased track recorded May 1968
Interstellar Overdrive
l ive, Ummagumma outtake
Interstellar Overdrive
the earliest recording, on "Tonight Let's All Make Love in London"
It's a Miracle
uptempo version with Flea on bass
It Would Be So Nice
single
Jews Harp and Windchimes
unreleased track recorded in 1969
John Latham
unreleased track recorded May 1968
Julia Dream
back of "It Would Be So Nice"
Just Before You Disappear
unreleased Barrett song
Keep Smiling People
May 31 1968, early version of "Careful..."
King Bee
blues song, covered by the Rolling Stones, written by Moore, recorded by
Slim Harpo
Lafayette Railroad
by Little Feat, performed at Gilmour sound checks
Lanky (Part 2)
unreleased Barrett instrumental
Like A Rolling Stone
Gilmour demo played on Radio One, 28/7/92
Living Alone
unreleased Barrett track
Lucy Leave
from '66 sessions
Lucy Lee in Blue Tights
first group composition, may have become "Lucy Leave"
Madamoiselle Knobs
from the "Pompeii" movie
Merry Christmas Song
from the John Peel Show, December 1975 ^
Mexico '78
"La Carrera Panamericana"
Millionaire
unreleased early track, sometimes called "She Was A Millionaire"
Molly's Song
Waters KAOS single
Moonhead
from BBC TV ++
Mother
"Wall" movie version
Nick's Boogie
also on "Tonight..."
Not Now John (obscured)
expletives-deleted single
On The Run
early live jam
One in a Million
early live song, sometimes called "Rush in a Million"
Outside the Wall
" Wall" movie version
Overture
recorded for "Wall" movie
Overture for Comfortably Numb
unreleased/alternate track from The Wall
Paint Box
back of "Apples and Oranges"
Pan Am Shuffle
from "La Carrera Panamericana" film
Peace Be With You
from MLoR, a 'good luck' message to Waters
Peter Gunn
by Henri Mancini, performed at About Face sound checks
Piggy Back
unreleased early live piece
Pink
unreleased early live piece
Point Me At The Sky
single
Point Me At The Sky
extended, from the Top Gear sessions
Prophet
unreleased song/alternative title from The Wall sessions
Oenone
Zabriskie outtake
Rain In The Country
Zabriskie outtake
Raving and Drooling
later became "Sheep"
Reaction in G
12 October 1967
Religious Experience
EMI outtake w/Barret & Kevin Ayers, Jan 1970
Rhamadan
long (18 min) Barrett song from 1968.
Richard's Rave Up
eleased track recorded February 1968 (possibly a working title for ASoS
song)
Round and Around
extended
Run Like Hell
Potzdamer Mix, from a Berlin Wall promo CD
Scream Thy Last Scream
late Syd song
Seabirds
More outtake (Waters) **
See Emily Play
single
Sh-Boom
a 1954 "Crew Cuts" hit covered by Mason/Fenn
Sheep
with 23rd Psalm read by Mason
Silas Lane
from very early "basement" sessions, 1966
Small Theme
"La Carrera Panamericana"
Smiles for Miles
unreleased song recorded for ATD
Snowing
unreleased early live track
Sorrow
instrumental version
Synth Theme
unreleased song or working title from The Wall sessions
Take it Back
extended, from French promo CD
Terminal Frost
"Do Your Own Lead" version
Time
early studio version, June '72
Theme (Beat Version)
More outtake (entire band) **
Vegetable Man
late Syd song
The Violent Sequence
part eventually became "Us and Them" +
Waiting for the Drummer
live jam from the KAOS tour, 11/16/87
What Shall We Do Now?
from "The Wall" movie
When The Tigers Broke Free
from "The Wall" movie, later a single
"White of the Eye" soundtrack
scored by Mason/Fenn
You Gotta Be Crazy
later became "Dogs"
...and a few other items, mostly just instrumental jams from concerts and edited versions of songs for radio airplay.

* This piece has many live recordings, and a studio version was finally released on Works demo version was accidentally released on Picnic (a Harvest label sampler). Originally intended to be a part of Ummagumma.
** These songs were found in a volume of copyrighted musical works. "Seabirds" had lyrics, while the others were instrumentals. They appeared in the film, but were omitted from the album. Also, the music for "Seabirds" has apparently been published in a music book at some time (though the lyrics were different than in the movie).
+ "Violent" was originally written for the movie Zabriskie Point and was performed during some of their tours of the period as a part of a 20 minute piece including bits of "Heart Beat, Pig Meat." [From Gerhard]:

Part 1 is a tremendous drum part, sometimes labeled as "Corrosion"
Part 2 is a piano-based part, which could be "Heart Beat, Pig Meat"
Part 3 is again a drum-based thing, and also appears on some RoIOs as "Corrosion"
Part 4 is "The Violent Sequence," a piano-based part that sounds really familiar (and that's because it's the base for "Us & Them"). The sequence the song was written for involved riots or somesuch being shown in slow motion.

++ [from Adam Winstanley]: Moonhead was included as part of a documentary on BBC TV on the night of the first moon landing. It was in an "arts" series called Omnibus, this particular programme being about people's differing perceptions of the moon through time (a goddess, lunatics, romantic moonlight, were-wolves baying at it ... etc. etc.) The programme was subtitled "What if it's just green cheese."
^ Likely recorded in 1970. Exactly who is singing is not known; some combination of Nick Mason/Alan Styles/John Peel.

"Всъщност мн.малко неща има,които наистина са невъзможни",мислеше сиАлиса