Love Music? Celebrate the Summer Solstice With Music and Dance....
21 June, Monday, is the day. This all-over-France festival started in 1982 and is now celebrated throughout Europe. You can listen and dance to just about any kind of music all over Paris. Put on your dancing shoes, ring in summer, and enjoy the Fête de la Musique where ever you are in France.

http://www.fetedelamusique.culture.fr/site-2010/