Whistle Bobo Fing or Samo tribe Burkinabe late 19th century Sub-Saharan whistles, which may produce three or four notes, are used by musical groups and for signaling by hunters. When played in groups, the whistles sound in alternation in the manner of European hand-bell ensembles, with each performer producing a different pitch or pitches. A voice might also supply certain notes. View more. Whistle. Burkinabe. late 19th century. Wood. Dedougou or Tougan region, Burkina Faso (formerly Upper Volta). Aerophone-Whistle Flute-whistle