This article is reproduced from Music Disc chirp on the Minecraft Wiki. Mirrored from revision 3714026. It is licensed CC BY-NC-SA 3.0 by the Minecraft Wiki contributors — not under the Codex’s CC BY-SA 4.0, and it may not be used commercially. Edits belong upstream, not here.
"chirp" refers to both a song composed by C418, and a music disc that plays the song when inserted in a jukebox. The music disc is obtained from creepers killed by skeletons.
Because TNT ignited by a flaming arrow attributes all resulting kills to the entity that fired the arrow, a skeleton igniting a TNT block due to holding a bow enchanted with Flame, or shooting through lava or fire, also causes any creepers killed in the explosion to drop a disc.[1][2]
Music disc "chirp" now uses the .ogg format. Before, "cat" and "13" were the only discs in the .ogg format; all the other discs were in the .mus format, which was decrypted by Minecraft on-the-fly.
With the introduction of jukebox song definition, music disc "chirp" now has an associated .json jukebox song definition under data/minecraft/jukebox_song
The ID of music disc "chirp" has been changed from record_chirp to music_disc_chirp.
Issues
Issues relating to "Music Disc chirp" are maintained on the bug tracker. Issues should be reported and viewed there.
Trivia
"chirp" uses the same accompaniment samples as "The Orb of Dreamers" from the LittleBigPlanet series.[4] The samples come from the Optigan disc "Bossa Nova Style".[3] C418 stated that it was coincidental.[5]