1: Contemporary Sounds of Buenos Aires is a compilation CD released by Argentine independent label Constitution Music.

It contains tracks from different neo-tango and electronic artists from Buenos Aires, including NeoShaft, B.A.

The most important point of interest of this compilation are five unreleased tracks from the band Tanghetto, one of them being a remnant from "Emigrante (electrotango)" sessions, named "Otra oportunidad" ("Second chance").

In Tanghetto's words: "As we were still working on Emigrante (electrotango) and Hybrid Tango, we occasionally gathered together in the studio with friends and colleagues who are also exploring the path of tango and electronica.

The palette of styles goes from house to trip hop, from electrotango to chill out music.