Album Tracks 1. La Muerte Del Angel for Violin, Violoncello and Piano 2. Oblivion for Piano Trio 3. Le Grand Tango for Violoncello and Piano 4. Four for Tango for String Quartet/Las Cuatro Estaciones Porteñas for Violin, Violoncello and Piano 5. Primavera Porteña 6. Verano Porteño 7. Otoño Porteño 8. Invierno Porteño/Pieces for String Quartet 9. Alla Tango 10. Libertango for String Quartet