There are more than an artist with the same name: (1) Lamento is a project of the Brazilian singer Fernanda Rittinghaus and the German musician Roman Rütten (one of the members of Endraum), formed 2007 in Frankfurt am Main, Germany and ended in 2011. Their music combines elements from gothic, electronic and dreampop. Official Homepage
MySpace
(2) Lamento:Beyond The Void is a PC DVD-ROM "boy's love" game by Nitro+ CHIRAL, with music by ZIZZ Studio. Listeners of its soundtrack should change the artist tag to ZIZZ STUDIO.

Read more about Lamento on Last.fm.