| registrazioni |
|---|
| 1992-11 | The Unanswered Question | | Kevin Good, Detroit Chamber Winds and Friends, H. Robert Reynolds | 5:49 |
| 1994-02-07 | The Unanswered Question | | Michael Sachs, Cleveland Orchestra, Christoph von Dohnányi | 5:58 |
| 1995-02-03 | The Unanswered Question | | SWR Sinfonieorchester Baden-Baden und Freiburg, Michael Gielen | 5:22 |
| 2012-06-29 – 2012-06-30 | The Unanswered Question | dal vivo | Philip Smith, New York Philharmonic, Alan Gilbert | 5:56 |
| 2013-04 | The Unanswered Question | | Ensemble Caprice, Matthias Maute | 5:00 |
| 2014-09-26 – 2015-04-03 | The Unanswered Question | | David Gordon, Seattle Symphony, Ludovic Morlot | 6:51 |
| The Unanswered Question | | Alison Balsom, Britten Sinfonia, Scott Stroman | 6:32 |
| The Unanswered Question, Part 1 | parziale | New York Philharmonic, Leonard Bernstein | 2:55 |
| The Unanswered Question, Part 2 | parziale | New York Philharmonic, Leonard Bernstein | 2:32 |
