There are five bands called Sonar: an ambiental psychedelic rock band from Hungary, a Belgian industrial act, a Swiss minimalist progressive rock act, an italian house/trance act and Polish indie pop act.. about the Belgian one: During the last ten years sonar has become one of the most well-known and appreciated rhythmic-industrial projects. Countless releases and high-energetic live performances assured their top position in this genre. For those unfamiliar