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..
These are photos from concerts where Sonar played, so they may be of other bands that played the concert as well.
Die Krupps / Welle:erdball / Scary Bitches / Sonar / Haujobb vs Architect / SAM Dec 16, 2006 77933 Lahr, Germany Uploaded by Laza