Mandolin-banjo common in stores. Morgan Monroe has recently made three models, the MM-MB1 Mandolin Banjo the MM-MB2 Mandolin Banjo, and the Banjolin DLX (8 strings). The Morgan Monroe banjos look like traditional mandolin-banjos and have wooden resonators. The Cumbus model has a spun aluminum resonator. Prices currently range from around US $150 to US $700. In Italy, Musikalia manufactures three models of Mandolin Banjo, always with wooden resonator (mahogany, padouk or maple root wood veneered), animal skin, but gives an alternative between simple or double aluminium ring. Most instruction books concentrate on either the mandolin or the banjo. Mandolinists need more
Mandolin are used. Usually, courses of 2 adjacent strings are tuned in unison. By far the most common tuning is the same as violin tuning, in scientific pitch notation G–D–A–E, or in Helmholtz pitch notation: g–d′–a′–e″. Note that the numbers of Hz shown above assume a 440 Hz A, standard in most parts of the western world. Some players use an A up to 10 Hz above or below a 440, mainly outside the United States. Other tunings exist, including "cross-tunings", in which the usually doubled string runs are tuned to different pitches. Additionally, guitarists may sometimes tune a mandolin to