| Topology | Joe McPhee | 2×12" Vinyl | 4 + 2 | | 1987/88 | |
| Songs | Steve Lacy, Brion Gysin | 12" Vinyl + 7" Vinyl | 8 + 1 | | 1985/86 | |
| Concerto Piccolo | Vienna Art Orchestra | 2×12" Vinyl | 3 + 2 | | hat ART 1980/81 | [aucun] |
| Concerto Piccolo | Vienna Art Orchestra | 2×12" Vinyl | 3 + 2 | | hat ART 1980/81 | [aucun] |
| Composition 98 | Anthony Braxton | 2×12" Vinyl | 2 + 2 | | hat ART 1984 | |
| Open Aspects '82 | Anthony Braxton & Richard Teitelbaum | 12" Vinyl | 9 | | 1995/96 | |
| Prospectus | Steve Lacy Seven | 2×12" Vinyl | 5 + 3 | | hat ART 2001 | |
| Sonic Waters | Michel Redolfi | 2×12" Vinyl | 2 + 2 | | 2002 | |
| Braxton & Stockhausen | Braxton, Stockhausen; Marianne Schroeder | 2×12" Vinyl | 6 + 3 | | 2030 | [aucun] |
| The Minimalism of Erik Satie | Vienna Art Orchestra | 2×12" Vinyl | 9 + 3 | | hat ART 2005 | |
| Live Lörrach/Germany and Paris/France 1966 | Albert Ayler | 2×12" Vinyl | 5 + 3 | | 2009 | [aucun] |
| Sweet Zee | Daunik Lazro | 2×12" Vinyl | 2 + 6 | | 2010 | |
| The Well and the Gentle | Pauline Oliveros | 2×12" Vinyl | 2 + 4 | | hat ART 2020 | |
| One Too Many Salty Swift and Not Goodbye | Cecil Taylor | 3×12" Vinyl | 2 + 2 + 2 | | 3011 | |
| Windward Passages | Dave Burrell | 2×12" Vinyl | 6 + 5 | | hat ART 2025 | |
| Love for Sale | Mike Westbrook, Chris Biscoe, Kate Westbrook | 2×12" Vinyl | 9 + 9 | | hat ART 2031 | |
| Cobra | John Zorn | 2×12" Vinyl | 10 + 4 | | hat ART 2034 | |
| Westbrook‐Rossini | Westbrook‐Rossini | 2×12" Vinyl | 7 + 6 | | hat ART 2040 | [aucun] |
| News for Lulu | John Zorn, George Lewis & Bill Frisell | CD | 20 | | hat ART CD 6005 | |
| Die Reise | Herbert Distel | CD | 1 | | CD 6001 | [aucun] |
| Westbrook‐Rossini | Westbrook‐Rossini | CD | 12 | | hat ART CD 6002 | [aucun] |
| Concerto Grosso | Richard Teitelbaum | CD | 3 | | hat ART CD 6004 | |
| The Roots of the Moment | Pauline Oliveros | CD | 1 | | hat ART CD 6009 | |
| Zwei | Fritz Hauser | CD | 14 | | hat ART CD 6010 | |
| Propellers in Love | Arnold Dreyblatt & The Orchestra of Excited Strings | CD | 7 | | hat ART CD 6011 | |
| Compositions 99, 101, 107 & 139 | Anthony Braxton | CD | 8 | | hat ART CD 6019 | |
| Zwei | Fritz Hauser | (unknown) | 14 | | | |
| Anthony Braxton: Compositions 99, 101, 107 & 139 | Anthony Braxton | Digital Media | 8 | | | 889176462580 |
| Orte der Geometrie | Franz Koglmann | CD | 12 | | CD6018 | [aucun] |
| It Is in the Brewing Luminous | Cecil Taylor | CD | 1 | | 6012 | |
| Statement of an Antirider | Urs Leimgruber | CD | 5 | | hat ART CD 6013 | |
| Morning Joy | Steve Lacy | CD | 6 | | hat ART CD 6014 | 7619925601426 |
| Rodan | Sato Michihiro | CD | 23 | | hat ART CD 6015 | [aucun] |
| Comin' On | Bobby Bradford-John Carter Quintet | CD | 5 | | hat ART CD 6016 | |
| Sonic Waters #2 (Underwater Music) 1983 - 1989 | Michel Redolfi | CD | 3 | | hat ART CD 6026 | |
| Songs and Variations | Georg Gräwe & GrubenKlangOrchester | CD | 3 | | hat ART CD 6028 | |
| One in Two - Two in One | Max Roach & Anthony Braxton | CD | 2 | | hat ART CD 6030 | |
| Futurities, Part I | Steve Lacy Nine | CD | 10 | | hat ART CD 6031 | |
| Ich | Franz Koglmann | CD | 14 | | hat ART CD 6033 | |
| The Eighth | Cecil Taylor | CD | 2 | | hat ART CD 6036 | 7619925603628 |
| Live Lörrach/Germany and Paris/France 1966 | Albert Ayler | CD | 8 | | hat ART CD 6039 | [aucun] |
| Musique pour 8: L'Oc | André Jaume | 12" Vinyl + 7" Vinyl | 6 + 2 | | hat ART 1989/90 | [aucun] |
| The Roots of the Moment | Pauline Oliveros | CD | 6 | | hat ART CD 6009 | 7619925600924 |
| It Is in the Brewing Luminous | Cecil Taylor | CD | 1 | | hat ART CD 6012 | 7619925601228 |
| Four Compositions (Solo, Duo and Trio) 1982/1988 | Anthony Braxton | CD | 8 | | hat ART CD 6019 | 7619925601921 |
| 3D Family | David Murray | CD | 4 | | hat ART CD 6020 | 7619925602027 |
| Seven Compositions (Trio) 1989 | Anthony Braxton | (unknown) | 3 | | hat ART CD 6025 | 7619925602522 |
| Topology | Joe McPhee | CD | 5 | | hat ART CD 6027 | |
| Works for Piano | Morton Feldman; Marianne Schroeder | CD | 5 | | hat ART CD 6035 | 7619925603529 |
| Concerto Piccolo | Vienna Art Orchestra | CD | 5 | | hat ART CD 6038 | |
| Live Lörrach/Germany and Paris/France 1966 | Albert Ayler | CD | 8 | | hat ART CD 6039 | 7619925603925 |
| The Long March Part 1 | Max Roach & Archie Shepp | CD | 4 | | hat ART CD 6041 | 7619925604120 |
| Songs | Steve Lacy & Brion Gysin | CD | 10 | | hat ART CD 6045 | |
| Nutty on Willisau | Coe, Oxley & Co. | CD | 6 | | hat ART CD 6046 | 7619925604625 |
| A White Line | Franz Koglmann | CD | 15 | | hat ART CD 6048 | [aucun] |
| Garden 2 | Cecil Taylor | CD | 6 | | hat ART CD 6051 | 7619925605127 |
| The Dark Tree, Volume 1 | Horace Tapscott | CD | 4 | | hat ART CD 6053 | 7619925605325 |
| Non Troppo | The Ganelin Trio | CD | 4 | | hat ART CD 6059 | 7619925605929 |
| La stazione | Herbert Distel | CD | 2 | | hat ART CD 6060 | 7619925606025 |
| Composition 98 | Anthony Braxton | CD | 2 | | hat ART CD 6062 | 7619925606223 |
| The People United Will Never Be Defeated! | Frederic Rzewski | CD | 8 | | hat ART CD 6066 | 7619925606629 |
| Kimus #4 | Various Artists | CD | 10 | | CD 16004 | [aucun] |
| Sixty-Two Mesostics re Merce Cunningham | John Cage; Eberhard Blum | 2×CD | 31 + 31 | | hat ART CD 2-6095 | 7619925609521 |
| Songs and Variations | Georg Gräwe & GrubenKlangOrchester | CD | 3 | | hat ART CD 6028 | 7619925602829 |
| Cobra: Live Version | John Zorn | CD | 5 | | hat ART CD 60402 | 7619925604021 |
| Linear B | Joe McPhee Po Music | CD | 13 | | hat ART CD 6057 | 7619925605721 |
| Saxophone Diplomacy | Rova | CD | 6 | | hat ART CD 6068 | 7619925606827 |
| That Certain Feeling | Ran Blake | CD | 19 | | hat ART CD 6077 | 7619925607725 |
| The Use of Memory | Franz Koglmann | CD | 9 | | hat ART CD 6078 | |
| Itinerary | Steve Lacy+16 | CD | 7 | | hat ART CD 6079 | 7619925607923 |
| Why Patterns? / Crippled Symmetry | Morton Feldman | 2×CD | 2 + 1 | | hat ART CD 6080-1 | 7619925608029 |
| The Dark Tree, Volume 2 | Horace Tapscott | CD | 5 | | hat ART CD 6083 | 7619925608326 |
| Special Detail | Gerry Hemingway Quintet | CD | 6 | | hat ART CD 6084 | 7619925608425 |
| Flim Flam | Steve Lacy & Steve Potts | CD | 6 | | hat ART CD 6087 | |
| L'Heure Bleue | Franz Koglmann | CD | 13 | | hat ART CD 6093 | 7619925609323 |
| Sunrise in Different Dimensions | Sun Ra Arkestra | CD | 15 | | hat ART CD 6099 | 7619925609927 |
| Seeking | John Carter & Bobby Bradford's New Art Jazz | CD | 6 | | hat Art CD 6085 | |
| One Too Many Salty Swift and Not Goodbye | Cecil Taylor | 2×CD | 5 + 6 | | hatOLOGY 599-2 | 7619925609026 |
| Annette | Paul Bley / Franz Koglmann / Gary Peacock | CD | 12 | | hat ART CD 6118 | 7619925611821 |
| Willisau (Quartet) 1991 - Studio/Live | Anthony Braxton | 4×CD | 5 + 5 + 5 + 4 | | CD 4-61001/2/3/4 | |
| Old Eyes & Mysteries | Joe McPhee Po Music | CD | 13 | | CD 6047 | |
| Futurities, Part II | Steve Lacy Nine | CD | 10 | | hat ART CD 6032 | |
| Flight, Bremen 1961 | Jimmy Giuffre 3 | CD | 10 | | hat ART CD 6071 | 7619925607121 |
| 2 Compositions (Ensemble) 1989/1991 | Anthony Braxton | CD | 3 | | hat ART CD 6086 | 7619925608623 |
| Bot‐Ba | Giacinto Scelsi; Marianne Schroeder | CD | 13 | | hat ART CD 6092 | 7619925609224 |
| A Notion in Perpetual Motion | Vienna Art Orchestra | CD | 10 | | hat ART CD 6096 | 7619925609620 |
| The Crowd | Rova | CD | 5 | | hat ART CD 6098 | 7619925609828 |
| The New York School | Earle Brown, John Cage, Morton Feldman, Christian Wolff; Eberhard Blum, Frances‐Marie Uitti, Nils Vigeland | CD | 17 | | hat ART CD 6101 | |
| Remains | Steve Lacy | CD | 10 | | hat ART CD 6102 | |
| Palimpseste | Joëlle Léandre & Eric Watson | CD | 11 | | hat ART CD 6103 | 7619925610329 |
| For Philip Guston | Morton Feldman | 4×CD | 4 + 4 + 4 + 4 | | hat ART CD 6104-4 | 7619925610428 |
| What a Band | Christy Doran | CD | 11 | | hat ART CD 6105 | 7619925610527 |
| Ursonate | Kurt Schwitters; Eberhard Blum | CD | 7 | | hat ART CD 6109 | 7619925610923 |
| Mytha | Hans Kennel | CD | 19 | | hat ART CD 6110 | 7619925611029 |
| Atlas Eclipticalis | John Cage; Eberhard Blum | CD | 4 | | hat ART CD 6111 | 7619925611128 |
| Zaki | Oliver Lake Trio | CD | 5 | | hat ART CD 6113 | 7619925611326 |
| Galina Ustvolskaya 1 | Galina Ustvolskaya; Reinbert de Leeuw, Vera Beths, Harmen de Boer | CD | 3 | | hat ART CD 6115 | 7619925611524 |
| Kaleidoscopes | Paul Plimley & Lisle Ellis | CD | 11 | | hat ART CD 6117 | 7619925611722 |
| Town Hall (Trio & Quintet) 1972 | Anthony Braxton | CD | 4 | | hat ART CD 6119 | 7619925611920 |
| For Christian Wolff | Morton Feldman | 3×CD | 4 + 4 + 4 | | hat ART CD 6120-3 | 7619925612026 |
