from Budapest BelFeszt (Inner City Festival) and Hungarian Craft Beer Festival early June, through the Budapest Museum of Nights and the folksy events in the Danube Carnival Budapest 2012 in mid June, to the late June Budapest Spa Party series going on until the end of August, you will definitely find some kind of festival, party or concerts that are of great interest to you.
Budapest Summer Festival 2012 is spanning over the summer months in Budapest: June, July and August each has its own spectacular moments for locals and Budapest tourists.
There are several more events, so please do check our events guide for further ideas. Plus it is always a good idea to ask around when in Budapest: locals will be happy to help you with some ideas!
Take a look at this Budapest Events Guide here for some further tips.