Biography
There is more than one artist with this name:
1) Giuseppe Cuna, better known as Azel, is an Italian beatboxer.
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2) Azel is a one man experimental electronic project from California, inspired by industrial and trance. He's self released three albums and one EP. Most of it can be heard at http://www.soundcloud.com/azel/
Evidently Azel could also be some kind of instrumental metal band.
Biography text from Last.fm, available under CC BY-SA.