Sheer fun from the Verbier Festival in Switzerland on July 22, 2002: Bach's BWV 1065 concerto for four keyboards -- here, pianos-- transcribed by Bach from Vivaldi's original scoring for four violins.
Check out the finale (8:35). This is about stellar artists having a blast together (and yes, doing their own page turns) on the $$$$$$ of four concert grand pianos nestled together on the stage. Pianists are Argerich, Kissin, Levine and Pletnev... and one glimpses in the orchestra other iconic figures including Mischa Maisky, Sarah Chang and more. Classical festivals are amazing for their draw of talent configurations we're never going to find on a single stage at a metro subscription concert; the casually dressed crowd shows deep appreciation of that fact at the end -- you could think it was the wrap of a rock festival.