Not only does Mark Mancina's instrumental score for the movie qualify for this trope, but some of those pieces, including "Moves Like an Ape, Looks Like a Man" perfectly fit the Crowning Music of Heartwarming trope.
Think that's chilling, try the song they had planned for Shere Khan that was cut, which showcases his character as a regally ruthless hunter with a cold, dark baritone: it was cut for being too dark, among other reasons as cut characters and characterization.
While James Newton Howard's works with Disney is purely non-musical (save Treasure Planet: the songs were written mainly by Goo Goo Dolls' frontman John Rzeznik) he nonetheless deserves mention for his works in 3 films:
Also, "Toaster's Dream." Yes, it plays during one of the most terrifying scenes in the whole movie, but it is actually very epic and creepy at the same time.
"The Storm". Lampy, the comic relief, nearly getting himself killed just to recharge their battery in a storm to save not only Blanky, but the rest of his friends as well? Coolest. Scene. Ever. And the music just about proves it.
The Transformation sequence in Brother Bear has a beautiful Inuit song playing over the entire scene which makes this scene even more awesome. The best part, the song is also available in English on the soundtrack and when you know what it actually means it just fits this trope even better.
As anyone who's had to play it knows, the finale of Stravinsky's 1919 Firebird Suite is an absolute bitch to play because of the changes in meter. It is also epically gorgeous and heroic, as evidenced in its use in Fantasia 2000.
The Great Mouse Detective is one of the more fondly remembered films from Disney's 1980s dark age, and the songs are one reason for this.
The leitmotif "This Land" which recurs throughout The Lion King—the most poignant occurring when Simba cuddles up against Mufasa's body and later when he speaks to his father's spirit, the most stirring and triumphant when Simba claims the throne in the finale. While the whole movie was incredible, it would not have been half as emotionally effective without this music.
"Circle of Life" surely blows many away, especially when accompanied by the opening animation of the film.
"The King of Pride Rock" takes parts from both of the above, combines them, and adds to them to create a nearly six minute long masterpiece of modern orchestra.
A short instrumental piece of "Honor to Us All" that plays over the opening titles.
And the music that plays as Mulan slides down the lantern rope near the end of the film, and shortly thereafter the music that plays while the entire population of the Forbidden City bows to her. None of these are on the official soundtrack.
Peter Pan 2: Return to Neverland had the song "I'll Try". If you don't cry hearing the pain and loss of childhood Jane's suffering having grown up in WW 2, you'll cry when the downtrodden tune gets reused and revamped at the end to be an uplifting song about finding something to believe in despite it all.
Special mention goes to Ron Jones' excellent score for the series. Several pieces he composed are suspenseful, melancholic, amusing, exciting, and triumphant; they even rival some theatrical scores. Here's a sample.
SRMTHG: The music played at the very end of the first season finale, and all variations on it. Also, the music played when Antauri first appears as the Silver Monkey, and all variations on that. Hands down.
The intro theme to D-TV (which was a series of music videos using footage from Disney shorts and movies made for Disney Channel back in the day). Does the song scream 1980's? Yeah. Is it still awesome? Yeah.