Mae Nam temple mayhem?

Is some kind of 'music'thing going on in the temple in Mae Nam - I use the term 'music' merely to convey a meaning . . .

For the last 5 or 6 nights it's come drifting disturbingly over to me - some kind of drugged and frienzied amplified group of random howlers and shriekers backed by an loud and amplified drum kit which it sound like is being attacked with beach umbrellas wielded by several dozen people at the same time - non-stop for hours on end.

Must be a cultural thing . . .

R