Madrid: Performing Arts websites?

Would love to have a few recommendations of Madrid websites for scoping out the performing arts scene May 29-June 9 when I'm in town.

Gracias,

Performing arts covers a huge area .. what particularly are you looking for .. ? Classical music , rock music , ballet , flamenco , theatre ?

I've checked oout the flamenco recommendations here on MadridMan already. Theatre is problematic as my Spaish is not that good to follow along, however I know there are some multimedia "extravaganzas" that would be OK to attend. Definitely dance and non-rock concerts . Pretty broad, I know, but my window of opportunity is just May 29-June 10, so having more categories to look at I figure I'm more likely to snag something appealing.

http://www.guiadelocio.com/madrid
in Spanish will tell you everything in performing arts in Madrid
see headings for Arte, Teatro, etc.

hope it helps