| Symphony No. 2 | |
| Subtitle: | Le Double |
| Composer: | Henri Dutilleux |
| Dedication: | To the memory of Serge and Nathalie Koussevitzky |
| Duration: | ca. 30 minutes |
| Movements: | Three |
| Scoring: | Orchestra |
| Composed: | 1955–59 |
| Premiere Date: | 11 December 1959 |
| Premiere Location: | Boston |
| Premiere Conductor: | Charles Munch |
| Premiere Performers: | Boston Symphony Orchestra |
Henri Dutilleux's Symphony No. 2 Le Double is an orchestral work completed in 1959, commissioned by the Koussevitzky Music Foundation for the 75th anniversary of the Boston Symphony Orchestra. It is written for an orchestra and a second group comprising an oboe, a clarinet, a bassoon, a trumpet, a trombone, two violins, a viola, a cello, a harpsichord, a celesta, and timpani.
The work consists of back-and-forth interaction between the two instrumental groups, like that of a concerto grosso although the approach is different: in this piece, the smaller ensemble acts as a mirror or ghost of the larger one, sometimes playing similar or complementary lines, sometimes contrasting ones.[1]
In Dutilleux's own words:
The symphony has three movements, a performance taking around a half-hour.