But one of the first to break the pattern was the Brazilian composer Heitor Villa-Lobos (1887 - 1959) who wrote not six, but five preludes for guitar. There has always been a rumor that he actually wrote six, but one was lost. But since his five preludes, a number of other composers for guitar have written groups of five, such as the Five Bagatelles of William Walton and the Five Preludes of Maximo Diego Pujol.
Today I want to post for you my recording of the Prelude No. 4 of Villa-Lobos--the one I learned first and that remains my favorite to this day. It is an unusual piece, with a haunting modal melody interspersed with quiet chords. Then there is a scintillating arpeggio section followed by the melody in high bell-like harmonics followed by a repeat of the opening. For some reason, the piece has always felt to me that it is floating in a very high place, so I have chosen photos of mountains in South America to accompany the music, with a couple of waterfalls for the quick arpeggios.