Approximately fifty instrumental pieces from the medieval period have come down to us through various sources. These pieces are definable as dances because of their form. They come from various European regions, and the codices which contain them are datable to between the end of the 14th and the beginning of the 15th centuries, even if the pieces themselves are often relics of an earlier period. Despite their limited dimensions, they present a notable multiplicity of genres, including the ductia of English origins, the French and Italian estampite, and the saltarelli.