Julio César Alberto Sanders del Valle (1897–1942) was an Argentine musician who made his career as a pianist and composer of tango.

[1] He was the author of several famous tangos, including Adiós muchachos, composed in 1927 with César Vedani.

[2] He was born in Quilmes, Buenos Aires Province, the son of Francisco Alberto Sanders and Paula del Valle, belonging to an Anglo Creole family.

[4] He was also the author of "Viejo patio",[5] and "El Piano de los recuerdos", with lyrics of Enrique Cadícamo.

[6] His most well-known work Adiós muchachos, was recorded by Carlos Gardel,[7] Ignacio Corsini and Agustín Magaldi.