Simplify the following text for a Grade 8 native English-speaking person.
Original: Their recordings of Die schÃ ne MÃ 1\/4 llerin and Winterreise are highly prized as examples of their artistic partnership .
Simplified: Their recordings of the Schubert song cycles Die schÃ ne MÃ 1\/4 llerin and Die Winterreise were very highly thought of .