Complex sentence: At the age of seven, he entered the Vienna Conservatory, where he studied with Joseph Hellmesberger, Jr., Robert Fuchs, and Sigismund Bachrich, and graduated before his 13th birthday, earning the silver medal.
Split into simpler sentences: At the age of seven, he entered the Vienna Conservatory, where he studied with Joseph Hellmesberger, Jr., Robert Fuchs, and Sigismund Bachrich. He graduated before his 13th birthday, earning the silver medal.