Sphere Ensemble plays the Allegretto From Beethoven's Symphony No. 7. Recorded March 9, 2018, in the CPR Performance Studio.

The opening of the Fifth Symphony is more famous. The climax of Symphony No. 9 is more uplifting. But there's something about the second movement from Ludwig van Beethoven's Symphony No. 7 that makes it uniquely powerful.

In recent years, the music has added musical heft to key moments in films like “The King's Speech” and “Mr. Holland’s Opus.”

Here's a chance to hear that gorgeous, plodding music in an unusually stripped-down setting. The Sphere Ensemble, a chamber orchestra based in Denver, recently played its version of the Allegretto in the CPR Performance Studio.

The strings-only arrangement gives a different texture to the ominous opening chord and highlights the tension that smolders right up to the final notes.

Watch footage of a Sphere Ensemble “flash mob” performance at the University of Colorado in 2014, and explore Beethoven’s Seventh Symphony in our ever-popular Beethoven 9@9 podcast.

More exclusive music from the CPR Performance Studio: