Complex sentence: She studied at the "Tanglewood Institute" with Ruth Schonthal at the "Westchester Conservatory of Music" at Harvard University, where her main teachers were Earl Kim, Peter Lieberson, and Leon Kirchner.
Split into simpler sentences: She studied at the "Tanglewood Institute" with Ruth Schonthal. She also attended the "Westchester Conservatory of Music" at Harvard University, where her main teachers were Earl Kim, Peter Lieberson, and Leon Kirchner.