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 orchestra mando-basses but nowadays more likely to be acoustic bass guitar or double bass. The classical guitar section is very important and many orchestras are more accurately described as mandolin and guitar orchestras. Many orchestras also include a percussion section. Most mandolin orchestras are community-based and are supported by a core of professional musicians and teachers with a passion for plucked string instruments and music. They are found in nearly all major cities in the western world, as well as Japan, Korea, and South America. The stimulus to create mandolin groups often came from travelling mandolinists and teachers. Immigration from Europe