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 this is often called a 'Celtic' mandolin. American forms include the Army-Navy mandolin, the flatiron and the pancake mandolins. The tone of the flatback is described as warm or mellow, suitable for folk music and smaller audiences. The instrument sound does not punch through the other players' sound like a carved top does. The double top is a feature that luthiers are experimenting with in the 21st century, to get better sound. However, mandolinists and luthiers have been experimenting with them for at least since the early 1900s. Back in the early 1900s, mandolinist Ginislao Paris approached Luigi Embergher to