Simplify the following text for a Grade 9 native English-speaking person.
Original: Valery Abisalovich Gergiev ( born Moscow , 2 May 1953 ) is a Russian conductor and opera company director of Ossetian birth .
Simplified: Valery Abisalovich Gergiev ( ; ; born 2 May 1953 ) is a Russian conductor and opera company director .