Symphony of Sorcery

Symphony of Sorcery is a Sleeping World that is featured in Kingdom Hearts 3D: Dream Drop Distance, the second to be based on the Disney film, . The world features Mickey as a sorcerer commanding the Brooms.

Like Timeless River and Country of the Musketeers, Symphony of Sorcery is set in the past, during a period where Mickey was in pursuit of knowledge to become a Keyblade Master.

Development
Since the conception of the first Kingdom Hearts, Tetsuya Nomura had wanted to include a world based on Fantasia, but was unable to and ended up only including Chernabog as a boss in End of the World, though in a battlefield very similar to the Night on Bald Mountain segment.

Setting and Areas
Sora and Riku first enter the Chamber, where Socerer Mickey is seen having a nightmare. The Tower Entrance is where they can go downstairs and get outside the Tower. Sora can enter the Cloudwalk, which takes place up in the sky. On top of the mountain is the Glen, where Sora can fly up in the air. Finally, the Fields is when Sora gets the Sound Idea. Meanwhile, Riku enters Moonlight Wood, which takes place at night. Once the grass is cleared, you enter the Golden Wood. Finally, Snowgleam Wood is where the Sound Idea is found, but then Riku has the fight Chernabog at Bald Mountain.

Between Kingdom Hearts Birth by Sleep and Kingdom Hearts
Sometime after Terra-Xehanort's descent into darkness, his Heartless, Ansem, Seeker of Darkness, attacked many worlds and swallowed them into the darkness. One of these worlds was Symphony of Sorcery. Though it was restored after Sora defeated Ansem and destroyed the End of the World, Symphony of Sorcery remained in a state of deep sleep instead of returning to the Realm of Light, plagued by Nightmare Dream Eaters.

Kingdom Hearts 3D: Dream Drop Distance
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Sora
While carrying buckets of water in the tower, Mickey spots Yen Sid's sorcerer's hat on his desk. Making sure that no one was around, he puts it on and begins casting magic, unknowingly summoning a Dream Eater. As Sora arrives, he witness Mickey casting magic spells, bringing in a few waves, shooting starts, thunderclouds and the Dream Eater Mickey accidentally summoned, which then attacks Sora and knocks him out cold.

When Sora reawakens, he recognizes that he is in what appears to be Yen Sid's tower. However, since a sleeping Mickey, who is covered in darkness, does not recognized him, Sora guesses that he was in another dream world, of the days when Mickey was training to become a Keyblade master. Communicating telepathically with Sora, Mickey explains that a musical book has been possesed by darkness through a monster, trapping Mickey in the book and preventing anyone from entering, and the only way to defeat the darkness is to retrieve a Sound Idea. Accepting Sora's offer to help Mickey, the latter summons another book that Sora then enters the unpossessed book with a beam of light from his Keyblade.

Making his way through the magical realm within the book, Sora soon finds the Sound Idea in the Pastoral Symphony area, but was then confronted by the unknown man, who explains that he will be waiting for Sora in an area beyond sleep. Sora returns to the tower and Mickey tries using the Sound Idea on the possessed book. When it failed, Mickey concludes that one Sound Idea was not enough to rid the darkness from it. Sora reassures him, saying that he has a friend out there that was helping him and "picking up his slack". As Sora closes his eyes, another Sound Idea appears, allowing Sora to use them to create a powerful song that enhances its power to destroy the darkness in the book, although Mickey was yet recovered. Now being able to enter the book, Sora goes in and fights Spellican in the Sorcerer's Apprentice area, freeing Mickey and allowing him to wake up. With his spirit back in his body, Mickey thanks Sora with a friendly handshake. Leaving to fetch the water before he gets into trouble, Mickey runs to the door, but not before bidding Sora farewell and that he will see him soon, to which the latter agrees to. After a Keyhole appears, Sora seals it and continues on his way.

Riku
Riku enters the tower, only to see it starting to flood from the water running down the staircase. Riku wonders if it is coming from the top. He gets to the top, only to see the room flooded and Mickey trapped in darkness. Riku attempts to smash the book with his Keyblade, but Mickey reminds him that brutal force won't work. Mickey does not recognize Riku, but does have a feeling that they'll be friends one day. Mickey brings in a sheet of music. Riku goes in.

FLASHBACK: Mickey casts a spell on a broom, causing it to sprout arms. The broom then begins to fetch buckets of water. Mickey falls asleep. By time he wakes up, the room is flooded with water. Now there are many brooms fetching water. Mickey tries to stop them with magic, but unknowingly summons a Dream Eater.

Riku manages to obtain the power of sound in the Nutcracker Suite area, but the sheets he was in suddenly goes all black, forcing Riku to fall into it. He is now in the Night on Bald Mountain area and reaches a spooky volcano and again encounters the mysterious young man. The man explains that the Keyblade picked Riku first, but due to being unable to control his darkness, he lost it to Sora. As Riku demands what is up the man's sleeve, the volcano begins to erupt, and Chernabog suddenly appears (the man escaped during this time). Riku fights him during a dive.

Following the battle, Riku finds himself in Yen Sid's tower and uses the power of sound, but it was not enough. Another power of sound appears to help him. The music managed to get rid of the flooding water and free Mickey. Riku suspects that Sora helped him, causing slight déjà vu in Mickey. Riku explains about Sora to Mickey, on how Sora makes everyone happy and lucky. Mickey thinks it's thanks to Riku that Sora is who he is. They part ways with a handshake and a promises to meet again one day. A Keyhole appears and is sealed. -->