Tárrega wrote some of the best classical guitar pieces. He knew the guitar thoroughly. His work must be revised because of the type of instrument, strings and technique used by the Spanish master. Tárrega used fingernails until the last nine years of his life. In 1900, Tárrega withdrew from doing concerts and started to play with the flesh. Pujol described Tarrega's use of the flesh as giving a clear sound because of the "width, smoothness, and firmness of the body that set the strings vibrating. This certain touch must be developed". Pujol added, echoing Fuenllana, that "the flesh best transmits the feeling of the soul, such an unresponsive medium as nails interferes, somehow with the direct contact of the artist's sensibility to the string". Read more on the nail VS no nail controversy here.