Fleuve is the second album by the Pierre Favre Ensemble, led by Swiss jazz percussionist Pierre Favre. The album was recorded in October 2005 in Switzerland and released in October 2006 by ECM. Produced by Manfred Eicher, it was Favre's first album for ECM in eleven years and marked the return of the ensemble since their 1984 debut Singing Drums, presenting a new line-up that departed from the previous incarnation's all-percussion sound. The new line-up included seven musicians and new instrumentation, including harp, double clarinet, double bass, tuba, guitar, bass guitar, soprano saxophone, and serpent. The latter instrument is rarely used in jazz.