Vladimir Horowitz -
The White House, Washington D.C. (rec. 1978, rel. 2015)
After releasing a 70 CD "original album" box and a 41 CD "Live At Carnegie Hall" box, what more could Sony do to satisfy the apparently insatiable demand for Horowitz? That's easy: dig into the vault of unreleased live recordings to come up with 50 CDs worth of...
One volume in this set offers a chance to visit The White House on a sunny winter Sunday early in the presidency of Jimmy Carter. The Iran hostage crisis was still more than a year away, and the president had spent the previous week immersed in the minutiae of governmental affairs such as appointing the chair of the Great Lakes Basin Commission. Fun stuff for a technocrat.
A nice account of the concert can be found here:
"When Horowitz arrived at the White House on a Saturday afternoon in 1978, President Carter asked if he wanted to see the family’s residence, a rare privilege. No, his guest replied, “I’d like to see the piano!” So off they went to the East Room, where Horowitz’s own special Steinway, known as
www.mmfvt.org
It was a groundbreaking affair because it became the first episode of the PBS TV program "In Performance At The White House" which ran continuously until, um, 2016.

You can watch the complete first show here, complete with Jim Lehrer intro:
The show as presented on CD runs 54 minutes, opening with "The Star Spangled Banner". Chopin's "Sonata No. 2" is a surprising choice to follow up, since it includes the morbid "Marche Funebre". But then things pick up with Schumann and Rachmaninoff, ending with a rousing version of Horowitz's own "Variations On A Theme From Bizet's Opera
Carmen". The upscale crowd, quiet throughout, rewarded Vladimir with rousing applause to end the performance.