Premise: Yngwie Johan Malmsteen ( ; born Lars Johan Yngve Lannerbäck; 30 June 1963) is a Swedish guitarist and bandleader. Malmsteen first became known in the 1980s for his neoclassical metal playing style in heavy metal. In 2009, "Time" magazine rated Malmsteen as among the 10 greatest electric guitar players of all time.
Hypothesis: When Malmsteen was 40, he was considered a well-known guitarist in Finland.