Intended as the long-term replacement for IllumiNations: Reflections of Earth, Harmonious showcased and celebrated the cultures and stories of the world that have inspired various Disney films and music, and how it can unite us all, overcoming any language or border.

[7] Told through reimagined and reinterpreted Disney visuals and music by 240 international artists, the show was divided into three chapters: "Gather", "Celebrate", and "Unite".

[9][10][11][12] Originally set to premiere in 2020 after the limited run of its direct predecessor Epcot Forever, the show was delayed to September 29, 2021, due to the COVID-19 pandemic.

[14] On September 11, 2022, at D23 Expo 2022, it was announced that Harmonious would be permanently replaced with another nighttime spectacular, Luminous: The Symphony of Us, which premiered on December 5, 2023, as part of Disney's centennial celebration.

[15] Harmonious played its final performance on April 2, 2023, two days after the culmination of Walt Disney World's 50th anniversary celebration, with Epcot Forever returning in its place the following night to begin preparations for Luminous.

The clamor of voices then melded into a single crescendo and stopped, leading into a multi-lingual medley of "How Far I'll Go" from Moana and "Go the Distance" from Hercules sung in English, Mandarin Chinese, Norwegian, German, Arabic, Latin American Spanish, and Tahitian.

On the central screen, the mouth of the Cave of Wonders opened wide and as the image zoomed forward, Arabic geometric patterns could be seen moving past.

A dancing, stylized Genie (rendered in the style of Arabic calligraphy) appeared on the central screen and "summon[ed]" the launching fireworks.

More moving geometric patterns covered the screens before revealing the rooftops of Agrabah at nighttime and a silhouetted Aladdin and Jasmine riding the magic carpet.

This section celebrated the ancient Indian fable texts that partly inspired The Jungle Book, which was adapted into the 1967 Disney animated film of the same name.

Dancing puppets of Baloo, King Louie, Mowgli, and the other animal and human characters, as well as swirling Indian patterns, were displayed on the screens.

Continuing the tapestry motif, a growing Simba was then seen traveling with Timon and Pumbaa and traversed the African landscape day and night across the screens.

A singular perimeter firework was shot from the top of the America Gardens Theatre through the laser heart, and the images on the screens zoomed out to reveal stained glass windows (similar to those found in Notre-Dame de Paris) depicting Quasimodo and the cathedral itself.

A close-up image of a self-strumming guitar displayed across the screens opened the section, before transitioning to the Rivera family ofrenda (a home altar used during the Día de Muertos celebrations) lit with candles and filled with flowers.

The cempasuchil (Mexican marigold) bridges then covered the screens, before changing into hung strings of colorful papel picado (decorative banners) with animated elements.

The screens then changed to show the swooshing folkorico skirts of real-life Mexican folk dancers, colorful calaveras (sugar skulls), and a close-up image of Pepita (Mamá Imelda's alebrije) with her wings unfurled.

Fantastical imagery of the bayou and its dancing inhabitants (including Tiana and Naveen in their frog forms) — inspired by the work of Harlem Renaissance artist Aaron Douglas — then covered the screens, as flashing purple fountains, yellow and orange searchlights, and launched white fireworks moved to the music.

Set the song inside you soaring, and the whole wide world will hear it.”A laser heart was projected over the central barge, which slowly morphed into a flying dove of peace; a globe appeared on the water curtain and all the screens around it.

It was then followed by an upbeat medley of song samples from the show, including "Circle of Life", the EPCOT Anthem, "Arabian Nights", "Saludos Amigos", and "The World Es Mi Familia".

Each barge was named after the nearest intersecting World Showcase pavilion: Mexico (pointing northeast), Germany (southeast), Canada (northwest), and France (southwest).

As the collective of barges was too large to store in the backstage marina (located behind the Refreshment Outpost quick service restaurant and between the China and Germany pavilions), they remained semi-permanently moored at the center of the lagoon.

[5] At daytime, the perimeter screens were turned on to show the undersea imagery from Act I with the Walt Disney World 50th Anniversary logo periodically appearing and disappearing.

Featured songwriters in the Harmonious score include Kristen Anderson-Lopez, Elton John, Robert Lopez, Alan Menken, Lin-Manuel Miranda, Randy Newman, and Stephen Schwartz.