Of music written originally for guitar, the earliest influential composers stem from the classical period. They include Fernando Sor (b. Spain 1778) and Mauro Giuliani (b. Italy 1781), it is noted that they're music can be seen to be potentially influenced by Viennese classicism. In the 19th century guitar composers such as Johann Kaspar Mertz (b. Slovakia, Austria 1806) were influenced by music written for the piano. I Francisco Tárrega (b. Spain 1852) wrote more uniquely guitar music, incorporating stylized aspects of flamenco's Moorish influences into his romantic miniatures. This was part of late 19th century European trend towards musical nationalism. Albéniz and Granados contributed to this movement as they wrote within the same time period.