sentences:  In the middle of scenes depicting the incredible decadence that Argentina fell into, Edelstein has a – a street-musical group common in Uruguay and Argentina often present at political protests – erupt into the theatre, cutting across conventional lines of opera as a "high" art.The final aria of the work is Edelstein's setting of "El Rio," a poem by , that he uses to make a contrast with the scenes of decadence and decay.Having written over 14 works of what Edelstein prefers to call "Acoustic Theatre" − it is ""Tiradentes"" that is perhaps the most noteworthy for its scale and vision.