There are at least four groups of musicians calling themselves "Mosaic." One is a rock band, one a classical music quartet, one is a black metal band from Germany, & one is an electronic producer from the UK. For the '70s French avant-prog band use Mosaïc 1. Mosaic (Slovenia) was formed in 2002. Although the band doesn't like to place themselves amoung various styles, they defined themselves something like Alternative Rock-Grunge in more modern change. Read more on Last.fm