Simplify the following text for a Grade 7 native English-speaking person.
Original: He later continued studying in Vienna with AbbÃ Vogler ( Georg Joseph Vogler ) , founder of three important music schools ( in Mannheim , Stockholm , and Darmstadt ) ; another famous pupil of Vogler was Giacomo Meyerbeer , who became a close friend of Weber .
Simplified: He also studied in Vienna with a famous musician called AbbÃ Vogler . Through him he got to know another of his pupils , Giacomo Meyerbeer , who became a famous composer and was a close friend of Weber .