Main Street USA had two loops playing.
One for the Morning and one for the Afternoon.
Most of the tracks from the original loops are by the Paragon Ragtime Orchestra:
Whistler and His Dog
Paragon Ragtime Orchestra
CD iTunes
On the Boardwalk
Paragon Ragtime Orchestra
CD iTunes MP3
And Albert White and the Gaslight Orchestra "Your Father's Moustache" Vol.1 and Vol.2 (deleted/unavailable - as far as "the usual sources" are concerned).
Others are from Disneyland Forever and Walt Disney World Forever.
Sometime in the early 2000's (possibly pre-2004), the loops were changed although still including similar titles and themes.
Some of the old favorites are to be still in there but a few have been replaced (in some cases with similar titles).
Both the original and new loops are listed below.
The loops playing from 1992 to 2004(?) were:
AM Loop
Run Time 60:04
Run Time 60:51
In May 2009 the loops were:
AM Loop 2004(?)- 2012
01. (Let's All Be American Now)
02. Atlantic City
- Ragtime: Music from the Motion Picture
03. Clef Club #2
- Ragtime: Music from the Motion Picture
04. I Could Love a Million Girls
- Disneyland / Walt Disney World Forever
05. Yankee Doodle Dandy
- Disneyland / Walt Disney World Forever
06. Banana Peel Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
07. Aviation Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
08. Old Timers Waltz Medley
- Paragon Ragtime Orchestra, On the Boardwalk
09. Beautiful Beulah
- Disneyland / Walt Disney World Forever
10. Flitterin'
- Disneyland / Walt Disney World Forever
11. Fortuosity
- Disneyland / Walt Disney World Forever
12. Made in America
- Paragon Ragtime Orchestra, On the Boardwalk
13. Delmonic Polka
- Ragtime: Music from the Motion Picture
14. Dynamite Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
15. Kentucky Home
- Paragon Ragtime Orchestra, On the Boardwalk
16. Bring Back My Lovin' Honey Baby
- Paragon Ragtime Orchestra, Whistler and His Dog
17. (Goodbye Broadway, Hello France)
18. (How ya Gonna Keep 'em Down on the Farm)
19. Dearie
20. Winter Garden Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
21. Black and White Rag
- Albert White and the Gaslight Orchestra - Your Father's Moustache Vol. 2
22. Teddy Trombone
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
23. Golden Arrow
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
24. Chinatown, My Chinatown
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
25. A Mustache, a Derby, a Cane and a Cop
- Rides, Rapes & Rescues: Themes from the Great Silent Films
26. Goodbye My Coney Island Baby
- Disneyland / Walt Disney World Forever
27. Let's Have a Drink on It
- Disneyland / Walt Disney World Forever
28. Mary is a Grand Ole Name
- Disneyland / Walt Disney World Forever
PM loop 60:37 (As at September 2009)
01. Kentucky Home
- Paragon Ragtime Orchestra, On the Boardwalk
02. Old Timers Waltz Medley
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 1
03. Good Old Timers
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
04. Fiddlesticks Rag
- Palm Court Theatre Orchestra, The Picnic Party
05. Birdbrain Rag
- Gunther Schuller & the New England Ragtime Ensemble, The Art of Rag
06. Delmonico Polka
- Ragtime: Music from the Motion Picture
07. Flitterin'
- Disneyland / Walt Disney World Forever
08. Atlantic City
- Ragtime: Music from the Motion Picture
09. Beautiful Beulah
- Disneyland / Walt Disney World Forever
10. Clef Club #2
- Ragtime: Music from the Motion Picture
11. Clef Club #1
- Ragtime: Music from the Motion Picture
12. Train Ride
- Ragtime: Music from the Motion Picture
13. Banana Peel Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
14. I Could Love a Million Girls
- Disneyland / Walt Disney World Forever
15. Mary
- Disneyland / Walt Disney World Forever
16. Goodbye My Coney Island Baby
- Disneyland / Walt Disney World Forever
(start of loop)
17. Summer Magic
- Disneyland / Walt Disney World Forever
18. In My Merry Oldsmobile
- Disneyland / Walt Disney World Forever
19. Jogo Blues
- Paragon Ragtime Orchestra, Whistler and His Dog
20. Whistler and His Dog
- Paragon Ragtime Orchestra, Whistler and His Dog
21. Love Kiss Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
22. Smiles
- Paragon Ragtime Orchestra, Whistler and His Dog
23. On the Level You're a Little Devil
- Paragon Ragtime Orchestra, On the Boardwalk
24. Castle Walk
- Gunther Schuller & the New England Ragtime Ensemble, The Art of Rag
The music from "Ragtime" is available for purchase as mp3s (just buy what you need here and the Palm Court Theatre Orchestra - The Picnic Party here
Gunther-Schuller here (album only)
To celebrate the 20th Anniversary of the park opening, a new morning loop was brought over from Disneyland (also playing at WDW as of September 2012).
This loop, although retaining several of the old tunes is a brand new recording from Dean Mora and features new arrangements.
As this is a Disney recording, here are no sources.
Maple Leaf Rag
Married Life (from the Disney movie “Up”)
Let Me Call You Sweetheart
Surrey With the Fringe On Top
Oh, You Beautiful Doll
Old Timers Waltz Medley
Put on Your Old Grey Bonnet
And the Band Played On
Alexander’s Ragtime Band
Before the Parade Passes By
Goodbye, My Coney Island Baby
Dearie
Delerium Tremens Rag
Hello, Ma Baby
By the Light of the Silvery Moon
It’s a Long Way To Tipperary
In the Good Old Summertime
Fortuosity
Oh! You Drummer
Sidewalks of New York
There’ll Be a Hot Time In the Old Town Tonight
Wait ‘Till the Sun Shine Nellie
Meet Me in St. Louis
Elegance
Kansas City
Yankee Doodle Dandy (from Hello Dolly and used in Wall-E)
Wells Fargo Wagon
Put On Your Sunday Clothes
The "new" sound may take some getting used to!
A visit in March 2014 appears to confirm that the PM loop has now been replaced with the new AM loop so plays the same loop all day as suggested in the comments below. Keep in mind that it "may" just be a technical problem that hasn't been corrected yet and the PM loop may return later in the year or may even be a seasonal thing. Future visits should settle this. No official statement re the PM loop has been made by Disney.
Latest News April 2014:
The old PM loop is playing again. So whatever the reason they replaced it with the new morning loop we'll never know for sure. Still, part of the history of the Main St loops I suppose so worth reporting. It seems that at (seemingly) random times, (see comments below) that the "old" afternoon loop is still playing. We know of no official reason for this - error or contractual maybe or which way the wind is blowing. Be prepared to hear either depending on when you visit!.
Again, thanks to @needmagic for providing the information on both the pre 2012 AM and current PM loops and to @wedroy1923 for identifying the sources used.
We hope to fill in the gaps for the sources soon in the older loops.
One for the Morning and one for the Afternoon.
Most of the tracks from the original loops are by the Paragon Ragtime Orchestra:

Paragon Ragtime Orchestra
CD iTunes

Paragon Ragtime Orchestra
CD iTunes MP3
And Albert White and the Gaslight Orchestra "Your Father's Moustache" Vol.1 and Vol.2 (deleted/unavailable - as far as "the usual sources" are concerned).
Others are from Disneyland Forever and Walt Disney World Forever.
Sometime in the early 2000's (possibly pre-2004), the loops were changed although still including similar titles and themes.
Some of the old favorites are to be still in there but a few have been replaced (in some cases with similar titles).
Both the original and new loops are listed below.
The loops playing from 1992 to 2004(?) were:
AM Loop
Run Time 60:04
- Good Old Timers Waltz
- Fiddlesticks Rag
- Birdbrain Rag
- Delmonica Polka
- Flitterin
- Beautiful Beulah
- Clef Club No. 1
- Train Ride
- A Mustache, A Derby, A Cane and A Cop
- Goodbye My Coney Island Baby
- Let's Have a Drink on It
- Mary's A Grand Ol' Name
- Let's All Be American Now
- Atlantic City
- Clef Club No. 2
- I Could Love a Million Girls
- Yankee Doodle Dandy
- Banana Peel Rag
- Aviation Rag
- Old Timers Waltz Medley
- Fortuosity
- Made In America
- Dynamite Rag
- Kentucky Home
- Bring Me Back My Ever Lovin' Honey Boy
- Goodbye Broadway, Hello France
Run Time 60:51
- Let's All be American Now
- Atlantic City
- Clef Club No. 2
- I Could Love a Million Girls
- Yankee Doodle Dandy
- Banana Peel Rag
- Aviation Rag
- Old Timers Waltz Medley
- Beautiful Beulah
- Flitterin
- Fortuosity
- Made in America
- Delmonica Polka
- Dynamite Rag
- Kentucky Home
- Bring Me Back My Ever Lovin' Honey Boy
- Goodbye Broadway, Hello France
- How Ya Gonna Keep 'Em Down on the Farm
- Dearie
- Winter Garden Rag
- Black And White Rag
- Teddy Trombone
- Golden Arrow
- China Town my China Town
- A Mustache, A Derby, A Cane and A Cop
- Goodbye My Coney Island Baby
- Let's Have a Drink on It
- Mary's a Grand Ol' Name
In May 2009 the loops were:
AM Loop 2004(?)- 2012
01. (Let's All Be American Now)
02. Atlantic City
- Ragtime: Music from the Motion Picture
03. Clef Club #2
- Ragtime: Music from the Motion Picture
04. I Could Love a Million Girls
- Disneyland / Walt Disney World Forever
05. Yankee Doodle Dandy
- Disneyland / Walt Disney World Forever
06. Banana Peel Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
07. Aviation Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
08. Old Timers Waltz Medley
- Paragon Ragtime Orchestra, On the Boardwalk
09. Beautiful Beulah
- Disneyland / Walt Disney World Forever
10. Flitterin'
- Disneyland / Walt Disney World Forever
11. Fortuosity
- Disneyland / Walt Disney World Forever
12. Made in America
- Paragon Ragtime Orchestra, On the Boardwalk
13. Delmonic Polka
- Ragtime: Music from the Motion Picture
14. Dynamite Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
15. Kentucky Home
- Paragon Ragtime Orchestra, On the Boardwalk
16. Bring Back My Lovin' Honey Baby
- Paragon Ragtime Orchestra, Whistler and His Dog
17. (Goodbye Broadway, Hello France)
18. (How ya Gonna Keep 'em Down on the Farm)
19. Dearie
20. Winter Garden Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
21. Black and White Rag
- Albert White and the Gaslight Orchestra - Your Father's Moustache Vol. 2
22. Teddy Trombone
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
23. Golden Arrow
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
24. Chinatown, My Chinatown
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
25. A Mustache, a Derby, a Cane and a Cop
- Rides, Rapes & Rescues: Themes from the Great Silent Films
26. Goodbye My Coney Island Baby
- Disneyland / Walt Disney World Forever
27. Let's Have a Drink on It
- Disneyland / Walt Disney World Forever
28. Mary is a Grand Ole Name
- Disneyland / Walt Disney World Forever
PM loop 60:37 (As at September 2009)
01. Kentucky Home
- Paragon Ragtime Orchestra, On the Boardwalk
02. Old Timers Waltz Medley
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 1
03. Good Old Timers
- Albert White & the Gaslight Orchestra, Your Father's Moustache Vol. 2
04. Fiddlesticks Rag
- Palm Court Theatre Orchestra, The Picnic Party
05. Birdbrain Rag
- Gunther Schuller & the New England Ragtime Ensemble, The Art of Rag
06. Delmonico Polka
- Ragtime: Music from the Motion Picture
07. Flitterin'
- Disneyland / Walt Disney World Forever
08. Atlantic City
- Ragtime: Music from the Motion Picture
09. Beautiful Beulah
- Disneyland / Walt Disney World Forever
10. Clef Club #2
- Ragtime: Music from the Motion Picture
11. Clef Club #1
- Ragtime: Music from the Motion Picture
12. Train Ride
- Ragtime: Music from the Motion Picture
13. Banana Peel Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
14. I Could Love a Million Girls
- Disneyland / Walt Disney World Forever
15. Mary
- Disneyland / Walt Disney World Forever
16. Goodbye My Coney Island Baby
- Disneyland / Walt Disney World Forever
(start of loop)
17. Summer Magic
- Disneyland / Walt Disney World Forever
18. In My Merry Oldsmobile
- Disneyland / Walt Disney World Forever
19. Jogo Blues
- Paragon Ragtime Orchestra, Whistler and His Dog
20. Whistler and His Dog
- Paragon Ragtime Orchestra, Whistler and His Dog
21. Love Kiss Rag
- Paragon Ragtime Orchestra, Whistler and His Dog
22. Smiles
- Paragon Ragtime Orchestra, Whistler and His Dog
23. On the Level You're a Little Devil
- Paragon Ragtime Orchestra, On the Boardwalk
24. Castle Walk
- Gunther Schuller & the New England Ragtime Ensemble, The Art of Rag
The music from "Ragtime" is available for purchase as mp3s (just buy what you need here and the Palm Court Theatre Orchestra - The Picnic Party here
Gunther-Schuller here (album only)
To celebrate the 20th Anniversary of the park opening, a new morning loop was brought over from Disneyland (also playing at WDW as of September 2012).
This loop, although retaining several of the old tunes is a brand new recording from Dean Mora and features new arrangements.
As this is a Disney recording, here are no sources.
Maple Leaf Rag
Married Life (from the Disney movie “Up”)
Let Me Call You Sweetheart
Surrey With the Fringe On Top
Oh, You Beautiful Doll
Old Timers Waltz Medley
Put on Your Old Grey Bonnet
And the Band Played On
Alexander’s Ragtime Band
Before the Parade Passes By
Goodbye, My Coney Island Baby
Dearie
Delerium Tremens Rag
Hello, Ma Baby
By the Light of the Silvery Moon
It’s a Long Way To Tipperary
In the Good Old Summertime
Fortuosity
Oh! You Drummer
Sidewalks of New York
There’ll Be a Hot Time In the Old Town Tonight
Wait ‘Till the Sun Shine Nellie
Meet Me in St. Louis
Elegance
Kansas City
Yankee Doodle Dandy (from Hello Dolly and used in Wall-E)
Wells Fargo Wagon
Put On Your Sunday Clothes
The "new" sound may take some getting used to!
A visit in March 2014 appears to confirm that the PM loop has now been replaced with the new AM loop so plays the same loop all day as suggested in the comments below. Keep in mind that it "may" just be a technical problem that hasn't been corrected yet and the PM loop may return later in the year or may even be a seasonal thing. Future visits should settle this. No official statement re the PM loop has been made by Disney.
Latest News April 2014:
The old PM loop is playing again. So whatever the reason they replaced it with the new morning loop we'll never know for sure. Still, part of the history of the Main St loops I suppose so worth reporting. It seems that at (seemingly) random times, (see comments below) that the "old" afternoon loop is still playing. We know of no official reason for this - error or contractual maybe or which way the wind is blowing. Be prepared to hear either depending on when you visit!.
Again, thanks to @needmagic for providing the information on both the pre 2012 AM and current PM loops and to @wedroy1923 for identifying the sources used.
We hope to fill in the gaps for the sources soon in the older loops.