There is more than one artist using the name R.I.O 1)R.I.O is a duo that lives and works in Buenos Aires , Argentina. Their music is in the line between free improvisation , electronica , noise , free jazz and ambient. Their members are Sergio Merce ( Tenor sax , WX7 , Electronics) and Lucas Totino Tedesco (Lap steel guitar , electronics) , both from Buenos Aires. 2) An electronic house music producer.