Ozzwald started early in the fandom in the 2011, possibly earlier. He continued making pony related music until the middle to late 2012 where he focused more on originals. Somewhere on 2013 did he change his alias to DIABLE, where he finished two tracks, one of them being a remix of TuXe's Jumpy GLaDOS, and the other one was TIME. Later on did he change his alias to Dear Diary where he finished one original and "and half assed all the other ones". Now he goes under the name ¿MYSTYRY? and have so far continued making music.

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