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,
Classical guitar technique would apply. The actual shape is subject to such individual biology and musical preference that only experience and guidance of other musicians will be seen to be the best form chosen by the student. While the right hand is responsible for the sound of the guitar, the left hand performs two functions: pressing on the strings (to shorten their effective length and change the pitch) and articulation, i.e. slurring (commonly known as 'hammer-ons' and 'pull-offs') and vibrato. In musical notation, the left hand fingers are referred to as 1, 2, 3, and 4 (starting with index). The basic position for