Watch the entire 12-hour Beethoven Sonata Marathon as it happened on Sunday.

Listen to four highlights from WQXR's twelve-hour, 32-piano sonata marathon from Sunday.

Sunday, November 20 is "Beethoven Day," in New York City, signed and sealed by Mayor Michael R. Bloomberg. The honor comes in recognition of today's Beethoven sonata marathon.

We asked the pianists who are performing Sunday's 12-hour Beethoven piano sonata marathon about their connection to the composer. Here's what some of them had to say.

Chopin’s “Heroic” Polonaise in A flat major can be heard in a 1947 cartoon called, “Musical Miniatures,” featuring Woody Woodpecker and Andy Panda.

East and West met, in a manner of speaking, in the WQXR Café recently. The occasion was a performance by violinist Daniel Hope, sitarist Gaurav Mazumdar and tabla player Vishal Nagar.

In celebration of our 75th anniversary, we’ve culled our archive of interviews and shows for some of the most recognizable voices from the station’s past.

In 1956, a 16-year-old Neil Sedaka was one of 15 young people selected to appear on WQXR's educational program "Musical Talent in Our Schools." Listen to his remarkable performance.

We go to the circus for this week's Saturday Morning Cartoon, which features the Zampa Overture by Ferdinand Herold. This piece appears in a 1947 Andy Panda cartoon called "The Bandmaster."

After a dramatic personnel change, the Austin, Texas-based Miró Quartet is reconnecting with its roots in the music of Beethoven. Watch them perform in the WQXR Cafe.

In celebration of our 75th anniversary, we’ve culled our archive of interviews and shows for some of the most recognizable voices from the station’s past.

Feminists and black radicals, filmmakers, architects and rappers all grasped something in the emotional power of Beethoven’s music. Michael Broyles explores this in the new book Beethoven in America.

In 1992, soprano Beverly Sills was a guest on The Vocal Scene, a show hosted by George Jellinek that ran on WQXR for 36 years. Listen to the full show and watch our panel's response.

Today at 5 pm, English soprano Emma Kirkby and Swedish lutenist Jacob Lindberg join host David Garland in the WQXR studio to perform songs by 17th-century composer John Dowland.

Who was Beethoven’s biggest fan? Schroeder from the Peanuts gang, of course. He could bang out the composer’s most complicated pieces on his little toy piano.

He has played for Prince Charles in Buckingham Palace, launched a foundation in war-torn Afghanistan and just released his first album on Deutsche Grammophon. Watch him in the WQXR Cafe.

What are those pivotal moments of history, music and entertainment where one could have imagined greatness lurking? Imagine, if you will, a time machine opportunity for history's greatest composer. Think of it as "Bill and Ted's Excellent Adventure" or "Zelig," but applied to Beethoven.

Go to the Main Beethoven Time Machine Page

In celebration of our 75th anniversary, we’ve culled our archive of interviews and shows for some of the most recognizable voices from the station’s past.

HOW TO ENTER: No purchase or pledge necessary. Entries may be made on the WQXR Requests page between 12:01 a.m. Tuesday, Nov. 1, 2011, and 11:59 p.m. on Wednesday, Nov. 30, 2011 Eastern Standard Time.