Simplify the following text for a Grade 3 native English-speaking person.
Original: BÄ lohlÃ vek became chief conductor of the Czech Philharmonic in 1990 . However , in 1991 , the orchestra reorganized and controversially voted to appoint Gerd Albrecht its new principal conductor to replace BÄ lohlÃ vek .
Simplified: His name `` BÄ lohlÃ vek '' means `` Whitehead '' .