The 2nd prelude, in C-Minor, is a dramatic, almost mechanical creation where tempo and articulation are the principal interpretive tools available to the artist. The piece has tempo indications from Bach, a rarity, in that bar 28 is marked presto, bar 34 adagio, and then allegro in bar 35.
This video and recording were made at the Bösendorfer factory in Wiener-Neustadt, Austria, when Kimiko Ishizaka visited to choose an instrument for the Well-Tempered Clavier recording that was to take place later in the Teldex Studio. While she was there, the management of Bösendorfer invited her to try a special creation that they were just finishing - the 50,000th Bösendorfer ever manufactured. She sat down and played through the C-Minor Prelude one time, and then continued on to the Bösendorfer showroom. Fortunately for us, filmmaker Anna Osipanova was also there, with her cameraman, and they filmed the run-through, as well other scenes from the Bösendorfer factory, and made this video from the materials.
You can also listen to the version of the Prelude No. 2 that Kimiko recorded for the Open Well-Tempered Clavier project in 2014: