Classical guitar was playing in concerts around the world, popularizing his modern classical guitar, as well as a new style of music in the 1920s: Spanish romantic-modern style with guitar works by Moreno Torroba, de Falla, etc. Some people consider it to have been this influence of Segovia which led to the domination of the Torres instrument. Factories all over the world began producing them in large numbers. It was the 19th century classical guitarist Francisco Tárrega who first popularized the Torres design as a classical solo instrument. Composers of the Renaissance period who wrote for four course guitar include Alonso Mudarra,
Ten-string classical guitar of Yepes Ten-string classical guitar of Yepes The ten string extended-range classical guitar, with fully chromatic, sympathetic string resonance was conceived in 1963 by Narciso Yepes, who "ordered the guitar from José Ramírez [III]". This instrument is sometimes referred to as the "modern" 10-string guitar (or the "Yepes guitar") to differentiate it from ten-stringed harp guitars of the 19th century. Today, ten-string instruments to Ramírez' original design remain available from the Ramírez Company, and similar instruments in a variety of designs are available both from the Ramírez Company and other luthiers, notably from Paulino Bernabe Senior. In the early 1960s, luthier José