ELECTROACOUSTIC GUITAR NYLON STRINGS The seven-string guitar is a Brazilian variant of the classical guitar, used mainly in choro and samba. The extra low string can be tuned to either B or C - for loose playing on most popular songs - and allows for greater development of bass lines under traditional guitar harmonies. Pro-featured and great value for money, Ortega Guitars' affordable 7-string classical guitar offers a solid spruce top and sapele body that produces a lovely tone, while the wide Ortega nut and bridge 7-holes offer comfortable playing and a great experience. Both guitars come with the deluxe Ortega case.