Joaquin Rodrigo wrote two small pieces for guitar solo in 1926 and 1938, but it was in 1939 that he "struck gold" with the Concierto de Aranjuez, dedicated to the Spanish virtuoso Regino Sainz de la Maza. It has become, quite simply, the most successful concerto written for any instrument in this century and has even been rearranged for other instruments, by both the composer and others, but it remains most effective in its original form.