The sparkling slow movement from the second of two Julius Benedict piano concerti on the famous volume 48 of Hyperion's The Romantic Piano Concerto series; if you look in the video description you will see the YouTube playlist for the entire album which also include the ebullient Walter MacFarren Konzertstueck
Musical Interlude: I've had spring on the brain today, and here's a piece that has always sung of springtime to me. I guess it could easily indicate something else to other listeners, but for me, it speaks of the gentle warmth of a spring day.
"Piano Concerto No. 2," composed by Johannes Brahms, performed by the Chamber Orchestra of Europe, conducted by Bernard Haitink, with Emanuel Ax on piano.
A pleasant piano concerto by Friedrich Kalkbrenner, a German/French pianist and composer whom Chopin idolised (according to Wikipedia). This is a score video and it takes some digging through the comments to find out that the pianist is Hans Kann and the orchestra the Hamburger Sinfonie-orchester conducted by Heribert Beissel (from an old Turnabout LP, I didn't find a CD version).