MUDEAN is a doujin circle composed of Eternal Force (composition, arrangement, and lyrics), AMI (vocals, lyrics), IBUKI (vocals), and Chika (vocals). They are most well-known for their original VOCALOID songs and dance/synth pop arrangements of Touhou and VOCALOID songs; however, they are also notable in the utattemita community, with well-known utaite often providing guest vocals on their albums.

For a full list of collaboration albums in a sortable table, please see here.

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