Simplify the following text for a Grade 8 native English-speaking person.
Original: He soon grew tired of the concert life and decided to open a publishing house in Paris , which as Ã ditions Farrenc , was one of Franceâ s leading music publishers for nearly 40 years .
Simplified: He soon grew tired of the concert life and decided to open a publishing house in Paris , which was called Ã ditions Farrenc . It became one of Franceâ s most important music publishers for nearly 40 years .