Pianist Lang Lang sits down with his own revered mentor Gary Graffman, to discuss what makes great teachers — and bad ones. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

The Hilliard Ensemble, active in the early music world since 1973, will end its long tenure in 2014 with one last world tour. Marco Borggreve/Courtesy of the artist hide caption

itoggle caption Marco Borggreve/Courtesy of the artist

From left: Video director Joe Sabia, bassist Michael Thurber and recording engineer Matt McCorkle of CDZA. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Yuja Wang at NPR's studio in Washington, D.C. Denise DeBelius/NPR hide caption

itoggle caption Denise DeBelius/NPR

Benjamin Britten takes a cup of tea during rehearsals for his War Requiem at Coventry Cathedral, in Coventry, England in May, 1962. Erich Auerbach/Getty Images hide caption

itoggle caption Erich Auerbach/Getty Images

Jeremy Denk played Mozart at Carnegie Hall Wednesday with the San Francisco Symphony. Eric Thayer for NPR Music hide caption

itoggle caption Eric Thayer for NPR Music

This rare portrait of Bach, by Elias Gottlob Haussmann, hung in John Eliot Gardiner's home during World War II. courtesy of William H. Scheide, Princeton, N.J. hide caption

itoggle caption courtesy of William H. Scheide, Princeton, N.J.

Chinese composer Tan Dun's latest work, Nu-Shu: The Secret Songs of Women, was inspred by an ancient language spoken in a remote area of Tan's home province of Hunan. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Morton Subotnick performs at New York's La MaMa Experimental Theatre Club in 2004. The pioneering electronic composer recently created a mobile app for children. Jack Vartoogian/Getty Images hide caption

itoggle caption Jack Vartoogian/Getty Images

Soprano Angela Meade made her professional debut in the role of Elvira in Verdi's Ernani at the Metropolitan Opera. Marty Sohl/Metropolitan Opera hide caption

itoggle caption Marty Sohl/Metropolitan Opera

Cellist and composer Erik Friedlander's new album is titled Claws & Wings. Angelo Merendino/Courtesy of the artist hide caption

itoggle caption Angelo Merendino/Courtesy of the artist

Emily Bear is a classical and jazz pianist. At 12, she is what many call a prodigy. Nick Suttle/Courtesy of the artist hide caption

itoggle caption Nick Suttle/Courtesy of the artist

Antonio Pompa-Baldi's new album is a tribute to Francis Poulenc and Edith Piaf. Steinway & Sons hide caption

itoggle caption Steinway & Sons

David Robertson, a passionate champion of new music, conducts the St. Louis Symphony Orchestra on tour in Berlin. Dilip Vishwanat/St. Louis Symphony hide caption

itoggle caption Dilip Vishwanat/St. Louis Symphony

Chris Thile's new album, Sonatas and Partitas, draws from material written by Johann Sebastian Bach in the early 1700s. Brantley Gutierrez /Courtesy of the artist hide caption

itoggle caption Brantley Gutierrez /Courtesy of the artist

Nathan Gunn and Sasha Cooke star in the new opera The Gospel of Mary Magdalene as Yeshua (the Hebrew name of Jesus) and the title character. San Francisco Opera hide caption

itoggle caption San Francisco Opera

David Finckel is a longtime member of the Emerson String Quartet. Journeys: Tchaikovsky, Schoenberg is his last recording with the group. Christian Steiner/Courtesy of the artist hide caption

itoggle caption Christian Steiner/Courtesy of the artist

After his shocking ballet, The Rite of Spring, Igor Stravinsky branched out in surprising directions. Erich Auerbach/Getty Images hide caption

itoggle caption Erich Auerbach/Getty Images

Caroline Shaw, who composed the piece Partita for 8 Voices for her vocal group Roomful of Teeth, is the youngest-ever recipient of the Pulitzer Prize for music. Dashon Burton/Courtesy of the artist hide caption

itoggle caption Dashon Burton/Courtesy of the artist

Jazz composer Maria Schneider (left) and soprano Dawn Upshaw collaborated on the new album Winter Morning Walks. Jimmy & Dena Katz/Courtesy of the artist hide caption

itoggle caption Jimmy & Dena Katz/Courtesy of the artist

Classical pianist Simone Dinnerstein (left) and singer-songwriter Tift Merrit collaborate on the new album Night. Lisa Marie Mazzucco/Courtesy of the artist hide caption

itoggle caption Lisa Marie Mazzucco/Courtesy of the artist

A coach and high school students work on Osvaldo Golijov's Passion According to St. Mark with the composer (right) in November 2012. Chris Lee/courtesy of Carnegie Hall hide caption

itoggle caption Chris Lee/courtesy of Carnegie Hall