| recordings |
|---|
| 1964-04-17 | The Unanswered Question | | New York Philharmonic, Leonard Bernstein | 5:33 |
| 1964-04-17 | The Unanswered Question, S. 50 | | New York Philharmonic, Leonard Bernstein | 5:26 |
| 1973 | The Unanswered Question | | Česká filharmonie, Aaron Copland | 4:54 |
| 1983-05-26 – 1983-05-29 | The Unanswered Question | | Milwaukee Symphony Orchestra, Lukas Foss | 5:43 |
| 1986-05-10 – 1986-05-12 | The Unanswered Question, S. 50 (revised version) | | Chicago Symphony Orchestra, Michael Tilson Thomas | 7:14 |
| 1988-11-22 | The Unanswered Question | live | New York Philharmonic, Leonard Bernstein | 6:08 |
| 1989-08 | The Unanswered Question | | Orchestra of St. Luke’s, John Adams | 4:56 |
| 1993-04 | The Unanswered Question | | Orpheus Chamber Orchestra | 5:18 |
| 1994-09-23 – 1994-09-24 | The Unanswered Question | | The Sixteen, BBC Philharmonic, Harry Christophers | 5:11 |
| 1998-11-21 – 1998-11-28 | The Unanswered Question | live | SWR Radio-Sinfonieorchester Stuttgart, Rupert Huber | 5:20 |
| 1999-09-30 – 1999-10-03 | The Unanswered Question (I & II), S. 50 | live | Glenn Fischthal, San Francisco Symphony, Michael Tilson Thomas | 6:19 |
| 2000-06-19 – 2000-06-20 | Two Contemplations: The Unanswered Question (version no. 2) | | Northern Sinfonia, James Sinclair | 4:36 |
| 2004-06-10 | The Unanswered Question | live | [unknown] | 6:11 |
| 2008-10-20 | The Unanswered Question (II) | | The Knights, Eric Jacobsen | 5:42 |
| 2011-05-07 – 2011-05-08 | The Unanswered Question | live | Oregon Symphony, Carlos Kalmar | 5:42 |
| 2012-04-29 | The Unanswered Question | | The Royal Concertgebouw Orchestra, Ivan Meylemans | 6:56 |
| 2015-03-30 – 2015-04-02 | The Unanswered Question | | Melbourne Symphony Orchestra, Andrew Davis | 5:02 |
| 2018-05-20 | The Unanswered Question | cover and live | Gamelan Sari Pandhawa | 4:01 |
| La question sans réponse | | Orchestre Manifesto, Mélanie Thiébaut | 6:05 |
| The Unanswered Question | | 冨田勲 | 6:20 |
| The Unanswered Question | live | Charles Ives | 5:54 |
| The Unanswered Question | | Philharmonisches Orchester der Stadt Ulm, James Allen Gähres | 5:55 |
| The Unanswered Question | | Chicago Symphony Orchestra, Michael Tilson Thomas | 7:04 |
| The Unanswered Question | | Charles Ives | 6:10 |
| The Unanswered Question | | [unknown] | ?:?? |
| The Unanswered Question | | Northern Sinfonia, James Sinclair | 4:41 |
| The Unanswered Question | | Morton Gould, Chicago Symphony Orchestra | 6:59 |
| The Unanswered Question | live | Charles Ives | 5:23 |
| The Unanswered Question | | Академический симфонический оркестр Московской филармонии, Дмитрий Георгиевич Китаенко | 6:45 |
| The Unanswered Question | | Orquestra Gulbenkian, Michel Swierczewski | 6:00 |
| The Unanswered Question, for trumpet, winds, and string orchestra, S.50 | | Royal Philharmonic Orchestra, Harold Farberman | 5:13 |
