The musician Julio "Jimmy" Ledezma was born in Posadas, Province of Misiones, Argentina. At 6 years old started playing in Scolas do Samba (Samba Schools) in this city heavily influence by Brazilian music. Won 4 awards consecutive years in Posadas Misiones and in later years participated in the "Defensores de la Patria" Scola do Samba based in Porto Alegre, performing in Florianópolis and Lagoa, Brazil. About at the same age started studying Piano, Guitar and Drums in Buenos Aires Conservatory (Posadas Misiones) for 5 years and continued at the Fracassi Conservatory for another two years. In 1973 moved to Rosario Argentina to continued his education and studied music at SADAIC (Musician Union of Argentina).
In 1978 moved to the United States of America and in 1981 joined the band Arco Iris. Since then has recorded five albums composing and playing: Drums, Guitar, Charango and Bombos Legueros. One of the songs he composed -Peace Pipes- with world distribution trough Passport Jazz, was 17 on the Radio Performance Charts.