Mandolin-banjo became more popular. In the heyday of mandolin orchestras and banjo bands (late 19th–early 20th century), all sorts of instruments were produced. The mandolin-banjo is one of the hybrids that resulted. It enabled mandolinists to produce a banjo sound without having to learn that instrument's fingerings. The instrument adds the banjo's volume to the mandolin. The banjolin is different from the banjo-mandolin in the number of strings that it has. Banjolins today are supposed to have four strings instead of 8 strings (in courses or pairs). However, that distinction is not universal; the "banjolin" name was patented in 1885 by
Mandolin that used steel or steel-and-bronze strings. Pasquale Vinaccia (1806–c. 1882), modernized the mandolin, adding features, creating the "Neapolitan" mandolin c. 1835. Pasquale remodeled, raised and extended the fingerboard to 17 frets, introduced stronger wire strings made of high-tension steel and substituted a machine head for the friction tuning pegs, then standard. The new wire strings required that he strengthen the mandolin's body, and he deepened the mandolin's bowl, giving the tonal quality more resonance. He didn't introduce the bent soundboard, as it was present in some of the instruments made by the previous generation for bronze strings. Other luthiers who