Task: Question Generation
Input (English): Context : Alternative Press (p. 108) gave it 3.5 stars out of 5 and said, ``A-Lex deftly fuses the band's many stylistic phases, from the thrash and death metal that launched their career to later explorations of punk, hardcore, groove metal and even tribal rhythms.'' 
Subject : A-Lex 
Relation : based on
Output (English): The A-Lex is based upon what?