Watch: Christopher Plummer's Unused Vocals Added Back to The Sound of Music Film

A newly synced video is letting us see—and hear—Christopher Plummer's un-dubbed performance of "Edelweiss" from The Sound of Music for the first time. The Oscar- and Tony-winning actor starred as Captain Von Trapp in the classic 1965 movie musical, though his singing was dubbed by singer Bill Lee after Plummer's original recording sessions were deemed insufficient.

To mark the release of the film's "Super Deluxe Edition" soundtrack December 1 from Craft Recordings, Plummer's original vocals for "Edelweiss" have been synced with the movie scene, offering the actor's full, authentic performance in the number for the first time ever. Watch above.

The track is one of many special inclusions in the new soundtrack release. Available both digitally and in a variety of physical editions, the "Super Deluxe Edition" includes the entirety of the film's music for the first time, which together with alternate takes and instrumental versions of each song amounts to 40 previously unreleased tracks.

The most deluxe of the physical releases includes four CDs and one blu-ray audio disc. Along with a new Dolby Atmos mix of the original soundtrack, this version features 11 never-before-heard alternate takes—the alternate version of "Prelude/The Sound of Music" is available here.

Mike Matessino, the associate to film producer-director Robert Wise who remixed and remastered the album from the original multi-track tapes, has written in-depth liner notes for this release. "You will hear what you’ve heard before, famous songs with the mellifluous tones of Dame Julie Andrews leading the way, but the experience has been transformed beyond what the 1965 soundtrack album offered—with extensions to the songs, a brilliantly arranged underscore, and even some segments not used in the completed version of the film," said Matessino in an earlier statement.

Craft is also putting out deluxe two-CD and three-LP editions of the soundtrack, which include the film's full score. A special "Picnic Meadow Green" color LP edition is available exclusively at CraftRecordings.com.

Released in 1965, The Sound of Music was adapted from the 1959 Richard Rodgers, Oscar Hammerstein II, Howard Lindsay, and Russel Crouse Broadway musical of the same name. Featuring a screenplay by Ernest Lehman and arrangements by Irwin Kostal, the film notably departed dramatically from the stage musical, adding new songs with music and lyrics by Rodgers ("I Have Confidence" and "Something Good") and shifting the placement of others ("My Favorite Things" and "The Lonely Goatherd"). With Julie Andrews, fresh off her Oscar-winning film debut in Mary Poppins, starring as nun-turned-governess-turned-stepmother-vocal-coach Maria, the film quickly became a smash hit and has endured as one of the most popular and beloved movie musicals ever made.

The movie's success made the soundtrack a hit as well, with more than 20 million copies sold to date. The album hit No. 1 on the Billboard 200 list in 1965 and stayed in the top 10 for 109 weeks. The soundtrack has been re-released numerous times, with anniversary releases in 1995, 2000, 2005, 2010, and 2015 that all presented various packages of bonus material and remasters. The recording was selected for preservation in the Library of Congress' National Recording Registry in 2018 for being "culturally, historically, or artistically significant."

Visit CraftRecordings.com to order.