If you put 'ringing' into the search box there are three 'ringing stones' on tma. Though I expect there are more in the real world. Dunno about ringing (with a clear note) but the repetitive banging of stone on stone to carve the thing would either give you a headache or maybe it'd make you go all trancey with its repetitiveness. Anyway guess it partly depends on the geology?

Afternoon drinking, Kammer? You'll be asleep by teatime. Unless you're going to carry on drinking until midnight and the kebab shop, of course.