This isn t to say they are easy to keep in tune. Using three to five double reeds in a mouth blown pipe is makes for an ever changing pitch problem. Plastic reeds have been used with some success. The Piva is extinct in its northern Italian home and appropriate music may be hard to come by but reproductions are available. The piva consists of one chanter and one drone.
Some makers use a double reed chanter and some use single reed.
These pipes are very small and easy blowing. The single bass drone and chanter both employ single reeds. These are easy to blow but hard to play well. They are made in D and G, often sold with one chanter in each key and an extra drone so that one set can be used for music in both keys. The gaida uses a goatskin bag.