Cyril Lefebvre, born on October 19, 1947, in Versailles, France, was a musician and scholar. His mother was a first violinist in an orchestra symphonique. Lefebvre began his career as part of the group Maajun from 1970 to 1972, where he played guitar slide alongside Jean-Louis Mahjun and others. The group released their LP Vivre la mort du vieux monde in 1971. Lefebvre's solo career included several notable albums such as Cocaïne blues (1978) and Vibrato (1979). He also collaborated with various artists, including Marie Delbecq and Brownie McGhee. Lefebvre was also a pioneer in promoting the ukulele, authoring two influential methods for the instrument and founding the Ukulélé Club de Paris in 1992. He passed away on April 7, 2012, at the age of 64.