| 1995 | Four Hand Piano Music, Volume 1 | Johannes Brahms; Christian Köhn, Silke-Thora Matthies | | 1 |
| 1996 | Four-Hand Piano Music, Volume 1: Legends, op. 59 / From the Bohemian Forest | Dvořák; Silke-Thora Matthies, Christian Köhn | | 1 |
| 1997 | Four-Hand Piano Music, Vol. 2: Slavonic Dances opp. 46 and 72 | Dvořák; Silke-Thora Matthies, Christian Köhn | | 1 |
| 1997 | Four Hand Piano Music, Volume 2: Hungarian Dances / Liebeslieder Waltzes | Johannes Brahms; Silke-Thora Matthies, Christian Köhn | | 2 |
| 1998 | Four Hand Piano Music, Volume 3: Sonata in F minor / Variations on a Theme by Joseph Haydn | Johannes Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 1999 | Four Hand Piano Music, Volume 4: Serenades nos. 1 and 2 | Johannes Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 1999 | Four Hand Piano Music, Volume 5: A German Requiem | Johannes Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2000 | Four Hand Piano Music, Volume 6: Symphony No. 1, Triumphslied | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2002 | Four Hand Piano Music, Volume 7: Symphony no. 2 in D major / Symphony no. 3 in F major | Johannes Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2003 | Four-Hand Piano Music, Vol. 8: Symphony no. 4 / Tragic Overture | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2003 | Four Hand Piano Music, Volume 9: Piano Concerto no. 1 / Academic Festival Ouverture | Johannes Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2003 | Four Hand Piano Music, Volume 10: String Quartets op. 51 nos. 1 & 2 | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2004 | Four Hand Piano Music, Volume 11: String Quartets No. 3, String Quintet No. 1 | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2004 | Four Hand Piano Music, Volume 12: String Quintet No. 2, Piano Quartet No. 1 | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2005 | Four Hand Piano Music, Volume 13: String Sextets Nos. 1 and 2 | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2005 | Four Hand Piano Music, Volume 14: Piano Quartet No. 2, Five Waltzes | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2006 | Four Hand Piano Music, Volume 15: Symphonies No. 3 and 4 (Version for two pianos) | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| 2006 | Four Hand Piano Music, Volume 16: Schumann: Piano Quartet, op. 47 / Schubert: Ländler | Robert Schumann, Franz Schubert / Johannes Brahms; Christian Köhn, Silke-Thora Matthies | | 1 |
| 2013 | Four Hand Piano Music, Volume 18: Piano Concerto no. 2 (version for two pianos) | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
| — | Four Hand Piano Music, Volume 17: Piano Concerto no. 1 (version for two pianos) | Brahms; Silke-Thora Matthies, Christian Köhn | | 1 |
