Glacier by Alvin Luciers is a masterpiece. There's not much happening on the 'cello - just a long and very slow Glissando. What it's about are the additional resonances of the instrument itself and the hall, where you play it. That's why a live-performance for this piece is even more important than usually.
On December, 1 2021 Lucier died. Since i couldn't find this piece so far on the net, i decided to publish it despite all arguments against the online-version.
The graphic cycle "Variationen in G" (2016/17) by Ernst von Hopffgarten has 32 pictures in 30x40 cm. The "theme" is followed by 30 variations until it ends with a reprise of the theme.
The longer you deal with the graphics cycle, the more it looks like musical notation, but unfortunately you don't know the rules. The performance is therefore - far removed from an improvisation - a determination of these rules and thus a direct sounding of the underlying graphics.
Georges Aperghis: Quatre récitations 1 + 2 (2:35 comment, 5:50 piece)
Mark Andre: E (17:28 comment, 21:07 piece)
Georges Aperghis: Quatre récitations 3 + 4 (37:34 comment, 42:14 piece)
Benjamin Schweitzer: Drift  (The Elements in Review) (53:53 v, 59:12 piece)
With comments on the pieces in german and english
Even in the times of Corona, it is something different to hear a concert live or a recording. That's why I played this concert on a live stream. A program booklet for download is available here: https://matlorenz.de/en/200605Programbooklet.pdf
In 1997 Friedemann Schmidt-Mechau wrote his piece Morgenlachen for me. To celebrate his 65th birthday in 2020 i played the concert #FSM65 in Dresden, Frankfurt/Main and Oldenburg with all his 4 pieces for cello solo. This recording is live form March, 7 2020 at the Ausstellungshalle 1A in Frankfurt/Main.