Daniel Rosenfeld

Daniel Rosenfeld, also known as C418 is credited as the producer of the music in Minecraft. He produced the world music, the ambience music and the songs for all 11 Music Discs. He also produced the various sound effects for the game, such as footsteps, and released the game's official soundtrack, "Minecraft - Volume Alpha", which includes all the music present in the game made by him up to the soundtrack's release, plus some bonus tracks.

Music included in Minecraft
(NOTE: As of March 4th 2011, Minecraft's tracks have been given "official" names)

Please note, these tracks have been shortened to 30 seconds on the wiki, due to an agreement with the author to allow them onto the wiki. This does not apply to "11".

Released Minecraft soundtracks

 * Minecraft - Volume Alpha (04 March, 2011)

Cat
C418 revealed in an AMA on Reddit that the Ghast sounds are taken from his pet cat, and he makes those sounds when he is disturbed while sleeping. He was also going to have his cat voice Ocelots,, but since his cat never meows clearly,  , C418 decided to use cat sounds from Freesound instead.

Trivia

 * In-game music is cued by the time of day, with a random track being played at sunrise, sunset, noon and midnight.
 * Like Mojang employees, his in-game character can be seen wearing a cape in survival multiplayer.
 * His Minecraft skin is the default skin, but the head is replaced with the texture for a jukebox.
 * As of 1.9 Pre-Release 2, there are 11 music discs, all containing original C418 songs.
 * These include all of the previously-encoded files except 'Where are we now', due to troubles encountered when adding in music with spaces in the name.
 * In Minecraft Alpha there seems to be another music in Minecraft being titled "calm4" this is in fact not calm at all