Bladder pipe

The bladder pipe (German: Platerspiel or Blaterpfeife) is a medieval simplified bagpipe, consisting of an insufflation tube (blow pipe), a bladder (bag) and a chanter, sounded by a double reed, which is fitted into a reed seat at the top of the chanter. The reed, inside the inflated bladder, is sounded continuously, and cannot be tongued. Some bladder pipes were made with a single drone pipe, and reproductions are similar to a loud, continuous crumhorn. The chanter has an outside tenon, at the top, near the reed, which fits into a socket or stock, which is then tied into the bladder.