According to the eighth volume of the
Garland Encyclopedia of World Music, illustrations dating back to the 1300s and 1400s suggest that the instrument consisted of a simple bag made from a bladder, as well as a single-piece, often conical,
chanter. These illustrations did not include a drone. By the 1450s–1550s, the most common model of the pipasso was made from a sewn bag, a one-piece conical chanter, and also included a two-jointed bass drone (see
bagpipes for technical definition of drones as they pertain to musical instruments). In the second half of the 16th century, another German model came into existence. In this particular model, a second drone (tenor) was added below the bass drone. The single surviving model is currently held in the
Kunsthistorisches Museum in Vienna, Austria. By the 1700s–1800s, despite the beginnings of its ultimate decline and near disappearance, yet another model with a slightly different configuration had been created. The bass drone rested upright on the shoulder, while the tenor drone would have been in a parallel formation in the same stock (the socket that attaches the pipe to the bag itself; see:
bagpipes) as the
chanter. There are currently three extant samples of this model in the
Musical Instrument Museum in Brussels, Belgium. == Modern usage ==