Where did the ding noise come from?

[fastboy21]

back around 1990 my friends and i used to play DnD. i can recall us making a ding sound (we would just make with our voices) when we lvl'd...one friend of mine had a gong he would hit when he lvl'd.

i was the first in our grp to think it up...so i more or less invented the ding. it caught on at our hobby shop where we played and it spread. no, i'm not joking. if you played DnD in the late 80s in the greater NYC area you probably remember seeing folks doing this all over the place. i'm more than certain that one of the devs picked it up from us.