From RollerCoaster Tycoon Wiki Wiki, the RollerCoaster Tycoon encyclopedia that anyone can edit.

The music of the RollerCoaster Tycoon series was mostly written by Allister Brimble (RollerCoaster Tycoon and RollerCoaster Tycoon 2) and Alistair Lindsay (RollerCoaster Tycoon 3). As many credits as can be given are listed here, but information on which game or expansion pack a song originated in may not be complete.

Blond Sailor- Music by J.Priel, Lyrics by Bell Lieb and Parish recorded by The Andrews Sisters

Note- Some of the Fairground Organ tracks were misnamed by the original uploaders on youtube. I've also been using this playlist as a reference. 

Song Name In-game Name Appeared In
RollerCoaster Tycoon 1, 2, and OpenRCT2
RCT1 Title Screen Music
Title Screen Title Screen RollerCoaster Tycoon
Extended Version Title Screen Extended Loopy Landscapes and Added Attractions
RCT2 Title Screen Music
Title Screen Title Screen RollerCoaster Tycoon 2
OpenRCT2 Title Screen Music
Title Screen Title Screen OpenRCT2
Merry-Go-Round Ride Music: Fairground Organ Style
March - Children of the Regiment Merry-Go-Round 1 RCT1, RCT2
Heyken's Serenade Merry-Go-Round 2 RCT1, RCT2
La Belle Espagnole[note 1] Merry-Go-Round 3 RCT1, RCT2
Wedding Journey Merry-Go-Round 4 RCT1, RCT2
Tales from the Vienna Woods Merry-Go-Round 5 RCT1, RCT2
Slavonic Dance Merry-Go-Round 6 RCT1, RCT2
Das Alpenhorn Merry-Go-Round 7 RCT1, RCT2
The Blond Sailor Merry-Go-Round 8 RCT1, RCT2
Overture - Poet and Peasant Merry-Go-Round 9 RCT1, RCT2
Waltz Medley Merry-Go-Round 10 RCT1, RCT2
Bella Bella Bimba Merry-Go-Round 11 RCT2
Stars And Stripes Forever unimplemented RCT1, RCT2
Petersburg Schlittenfahrt unimplemented RCT1, RCT2
Merry-Go-Round Ride Music: Fairground Organ Style 2 (OpenRCT2)
See playlist: 18 songs in total
Im Salzkammergut, Granada, Prinz Heinrich Marsch, El Capitan, Mussinan Marsch, Berliner Luft, Die Schönbrunner, Deutschland's Ruhm Marsch, Ein Walzer Abend, One Day at A Time, Unter dem Doppeladler, Schlager Potpourri (I), Schlager Potpourri (II), Très Jolie Waltz, Unter Waffengefahrten, Sunflower, Unter der Friedenssonne, Colonel Bogey March
Fairground Organ Style 2 OpenRCT2
Other Ride Music
Circus Show Circus Show Loopy Landscapes, RCT2
Dodgems Beat Dodgems Beat RCT1, RCT2
Pharaoh's Tomb Egyptian Style Loopy Landscapes, RCT2
Flight of Fantasy (Fantasy Style) Fantasy Style RCT1, RCT2
Airtime Rock Rock Style 1 RCT1, RCT2
Big Rock Rock Style 2 RCT1, RCT2
Space Rock Rock Style 3 Loopy Landscapes, RCT2
Sweat Dreams Candy Style Loopy Landscapes, RCT2
Drifting to Heaven Gentle Style RCT1, RCT2
Hypothermia[note 2] Ice Style Loopy Landscapes, RCT2
Jungle Juice Jungle Drums Style Loopy Landscapes, RCT2
Blockbuster Jurassic Style Loopy Landscapes, RCT2
Maniac Mechanic Mechanical Style Loopy Landscapes, RCT2
Pipes of Glencairn Medieval Style Loopy Landscapes, RCT2
Techno Torture[note 3] Modern Style Loopy Landscapes, RCT2
Toccata[note 4] Organ Style Loopy Landscapes, RCT2
Ninja's Noodles Oriental Style Loopy Landscapes, RCT2
What shall we do with the Drunken Sailor[note 5] Pirates Style Loopy Landscapes, RCT2
Searchlight Rag[note 6] Ragtime Style RCT1, RCT2
Last Sleigh Ride Snow Style Loopy Landscapes, RCT2
Voyage to Andromeda Space Style RCT1, RCT2
Mid Summer's Heat Summer Style RCT1, RCT2
Brimble's Beat Techno Style RCT1, RCT2
Traffic Jam Urban Style Loopy Landscapes, RCT2
Atlantis Water Style RCT1, RCT2
Wild West Kid Wild West Style RCT1, RCT2
Caesar's March Roman Fanfare Style Loopy Landscapes, RCT2
Invaders Martian Style RCT1, RCT2
Eternal Toybox Toyland Style Loopy Landscapes, RCT2
Vampire's Lair Horror Style RCT1, RCT2
Other Ride Music (OpenRCT2)
Airtime Junkies Acid Style OpenRCT2
Snowbound Blizzard Style OpenRCT2
Bumblebeat Dodgems Beat Style 2 OpenRCT2
Style of the Extraterrestrial Extraterrestrial style OpenRCT2
Pandora Galaxy style OpenRCT2
Mystic Winds Mystic style OpenRCT2
The Ancient Lands Prehistoric Style OpenRCT2
Rush Rock Style 4 OpenRCT2
See playlist: 4 songs in total
Dill Piclkes Rag, Something Doing Rag, New Era Rag, Peacherine Rag
Ragtime Style 2 OpenRCT2
Music Covers (OpenRCT2)[note 7]
New Cover for Ragtime Style Ragtime Style (cover) OpenRCT2
New Cover for Slavonic Dance Slavonic Dance (cover) OpenRCT2
New Cover for Das Alpenhorn Das Alpenhorn (cover) OpenRCT2
RollerCoaster Tycoon 3
Ambient Birds Ambient Birds RollerCoaster Tycoon 3
Ambient Wind Ambient Wind RollerCoaster Tycoon 3
Buccaneer Buccaneer RollerCoaster Tycoon 3
Flat Head Four Flat Head Four RollerCoaster Tycoon 3
Galaxy Trooper Galaxy Trooper RollerCoaster Tycoon 3
Girls Like Spice Girls Like Spice RollerCoaster Tycoon 3
Gothic Moon Gothic Moon RollerCoaster Tycoon 3
Haunted House Haunted House RollerCoaster Tycoon 3
JJ's House JJ's House RollerCoaster Tycoon 3
Lush Canopy Lush Canopy RollerCoaster Tycoon 3
Nemesis Quest Nemesis Quest RollerCoaster Tycoon 3
Pirate Dreads Pirate Dreads RollerCoaster Tycoon 3
Prairie Rider Prairie Rider RollerCoaster Tycoon 3
Rock Like A Dude Rock Like A Dude RollerCoaster Tycoon 3
Space De Grey Space De Grey RollerCoaster Tycoon 3
Summer Air Summer Air RollerCoaster Tycoon 3
Bermuda Shorts Bermuda Shorts Soaked!
Bubble House Bubble House Soaked!
Funky Disco Funky Disco Soaked!
Lilo Pop Lilo Pop Soaked!
Mermaid Mermaid Soaked!
Surf Shack Surf Shack Soaked!
Bush Baby Bush Baby Wild!
Heart Of The Forest Heart Of The Forest Wild!
Salsa Salsa Wild!
Savannah Savannah Wild!
Tribal Wild Tribal Wild Wild!
Witch Doctor Witch Doctor Wild!
Song Name In-game Name Appeared In
  1. Listed as 'In Continental Mood'.
  2. Samples courtesy of Spectrasonics "Liquid Grooves".
  3. Remixed in Chris Sawyer's Locomotion and titled identically in 2004.
  4. Symphony for Organ No. 5, composed by Charles-Marie Widor, played by Peter James Adcock, recording © Chris Sawyer.
  5. Drunken Sailor, a sea shanty.
  6. Searchlight Rag, composed by Scott Joplin in 1907.
  7. Can be enabled via "Asset Packs" - "OpenRCT2 Music (Cover)".