DVD the complete set of Beethoven's Violin Sonatas (relaesed 1999), accompanied by Lambert Orkis; these were broadcast on television in many countries. Mutter devoted an entire year to performing all ten of Beethoven's violin sonatas in the "Beethoven: Face to Face" tour in cities throughout North America and Europe, including additional modern pieces. Music critic Anthony Tommasini of the New York Times wrote on a concert of the Beethoven tour, "Ms. Mutter's playing had its trademark qualities: rich yet focused tone, striking varieties of sound, articulate yet supple rhythmic play. But her increasing work in recent years with living composers has brought a new kind of intellectual energy to her playing, for she was particularly attentive to the bold turns in this youthful music." 2000s With the turn of the century, Mutter continued supporting new music and began collaborating with composer and conductor André Previn, who dedicated several works to Mutter. Mutter premiered a Tango Song and Dance in 2002, which Previn composed for her. Mutter also gave the first permanence and recording of Previn’s Violin Concerto with the Boston Symphony Orchestra the same year, of which the recording became a critical success. Mutter toured with orchestras under the direction of Previn, performing his concerto and later premiering Previn’s double concerto for violin and contrabass in 2007 with Roman Patkolò. Two years later, she premiered his Second Piano Trio with Lynn Harrell and Previn and Concerto for Violin and Viola with Yuri Bashmet. Other contemporary works dedicated to Mutter that she premiered included Henri Dutilleux’s Nocturne for violin and orchestra Sur le même accord (2002) under Kurt Masur conducting the London Philharmonic Orchestra and Sofia Gubaidulina’s violin concerto (2007) under Sir Simon Rattle with the Berlin Philharmonic. For Mozart's 250th Anniversary from 2005 to 2006, Mutter toured throughout Europe, North America, and Asia, including China, Japan, Korea, and Taiwan, performing Mozart's complete Violin Concertos, the Sinfonia Concertante for Violin, Viola and Orchestra and complete Piano Trios. Mutter performed with Lambert Orkis and André Previn as pianists. Five DVD and CD recordings containing the works performed on tour and the complete Violin sonatas of Mozart were released. In October 2006, on French television, Mutter appeared to indicate that she would be retiring when she turned 45, in 2008. However the following month she said that her words were "misinterpreted" and that she would continue to play as long as she felt