| 作曲者 | Thomas Kessler (b. 1937) | 
| タイトル | Is it? | 
| サブタイトル | for soprano and soprano saxophone (clarinet in Bb) on a text by John Cage | 
| 出版社 | Boosey & Hawkes・Bote & Bock・ブージー&ホーク | 
| 楽器編成 | soprano and soprano saxophone (clarinet in Bb) | 
| 品番 | mds9790202538890 | 
| 難易度 | difficult | 
| 言語 | ドイツ語 | 
| 形状 | 16 ページ・24.0 x 32.0 cm・134 g・Saddle-wire stitching | 
| 作曲年 | 2002年 | 
| 出版番号 | BB 3889 | 
| ISMN | 979-0-2025-3889-0 | 
| ISBN | 978-3-7931-4586-8 | 
| その他 | auf einem Text von John Cage | 
The seven-minute composition is based on an English text by John Cage: a quasi-musical calculated succession of 56 short basic questions about music. Singer and instrument have to perform various vocal, playing and breathing techniques, mostly in parallel motion. Their performance develops from a kind of ritual to free expression, with the piece itself becoming an answer to what the text wants to know – at least in parts: 'Is it high? Is it low? Is it loud? Is it a plane? Is it music? Why?'

 
                     
                      
                    