Grammy-nominated musician Daniel Stepner is the first violinist for the Lydian String Quartet, succeeding Wilma Smith in 1987. He earned his second Grammy nomination in 2005 for best small ensemble performance (with or without conductor) for his work on world-premiere recordings of retired Brandeis music professor Yehudi Wyner's "The Mirror/Passover Offerings." Stepner, an artist-in-residence on the faculty at Brandeis, is a member of the Boston Museum Trio and concertmaster of the Handel and Haydn Society. During the summers, he serves as artistic director of the Aston Magna Festival in the Berkshires. As a touring musician, he has played in 11 countries in Western Europe and the former Soviet Union, and throughout Australia and the United States. He has performed and recorded a wide repertoire of period and contemporary instruments. In addition to the Lydian String Quartet's many recordings, he has recorded chamber music by Buxtehude, Bach, Marais, Rameau, Vivaldi, Telemann, Mozart, Schubert, and Charles Ives. He studied with Steven Staryk in Chicago, with Nadia Boulanger in France, and with Broadus Erle at Yale.