There are several Bands that go under the name Anhedonia.
1) Anhedonia, an IDM / Industrial project, which was found in the end of summertime in 2004. Its only member Vojtěch Smetana comes from Prague.
3) Depressive Black Metal from Poland
Otis - Acoustic guitar
Karii - Bass
MW - Drums
Hasthur - Guitars
Tasman - Vocals
4) An electro-acoustic band from Costa-Rica: