Simplify the following text for a Grade 7 native English-speaking person.
Original: Theodor Franz JÃ rgensmann ( born 1948 in Bottrop , Germany ) is a jazz and free-improvising Basset clarinet player and composer .
Simplified: Theo JÃ rgensmann ( b. Bottrop , 29 September 1948 Germany ) is a jazz clarinet player and composer .