A performance by 90 double bassists in the Korea Kontrabass Association, recorded at the Seoul Korea Arts Center.
Actors Dave Belden and Kate Berry perform an excerpt from "Charles Ives Take Me Home," playing through Feb. 14 at the Curious Theatre in Denver.
The Tallis Scholars perform "Ikon of Light" by composer John Tavener.
Pianists Martha Argerich and Daniel Barenboim perform a two-piano arrangement of Stravinsky's "Rite of Spring."
The Matryomin Ensemble performs a theremin choir version of Beethoven's "Ode to Joy."
Canto Deo performs "Hark! The Herald Angels Sing."