Comment by cupparober:
CD1:
Track 1: 1:56 - (P) 1963
Track 2: 2:40 - Publ. BMG Ricordi SpA (P) 1963
Track 3: 1:55 - Publ. BMG Ricordi SpA (P) 1963
Track 4: 2:14 - Publ. BMG Ricordi SpA/Leonardi Ed. Srl (P) 1963
Track 5: 2:16 - Publ. Curci Edizioni Srl (P) 1963
Track 6: 2:25 - Publ. BMG Ricordi SpA (P) 1963
Track 7: 1:53 - Publ. BMG Ricordi SpA (P) 1963
Track 8: 2:37 - Publ. Leonardi Edizioni Srl (P) 1963
Track 9: 2:32 - Publ. BMG Ricordi SpA (P) 1963
Track 10: 2:23 - Publ. BMG Ricordi SpA (P) 1963
Track 11: 2:40 - Publ. BMG Ricordi SpA (P) 1963
Track 12: 2:25 (P) 1963
Track 13: 1:59 - Publ. BMG Ricordi SpA (P) 1963
Track 14: 2:25 (P) 1963
Track 15: 2:15 - Publ. BMG Ricordi SpA (P) 1963
Track 16: 2:02 (P) 1963
Track 17: 2:29 - Publ. BMG Ricordi SpA (P) 1963
Track 18: 2:44 - Publ. Aromando (P) 1963
Track 19: 2:01 - Publ. BMG Ricordi SpA (P) 1963
Track 20: 2:38 (P) 1963
Cond.: Ennio Morricone (1)
Orch.: Luis Enriquez Bacalov with the "4+4" by Nora Orlandi (2-5-6-7-10-11-18)
Arr.: Robby Poitevin (3-19)
Orch.: Luis Enriquez Bacalov (4-8)
Backing vocals: Nora Orlandi, Franco Potenza (8)
Cond.: Luis Enriquez Bacalov (9-12-13-14-15-17-20)
Cond.: W. Müller (16)
CD2:
Track 1: 2:23 - Publ. Screen Gems-Columbia Music (P) 1963
Track 2: 2:20 - Publ. Filmtrax Mogull Inc./BMG Ricordi SpA (P) 1964
Track 3: 3:03 (P) 1964
Track 4: full version (P) 1965
Track 5: 2:58 - Publ. BMG Ricordi SpA (P) 1965
Track 6: 2:38 - Publ. BMG Ricordi SpA (P) 1965
Track 7: 2:13 - Publ. BMG Ricordi SpA (P) 1966
Track 8: 2:48 - Publ. BMG Ricordi SpA (P) 1966
Track 2-9: promotional 45rpm - Publ. BMG Ricordi SpA (P) 1966
Track 10: 2:39 - Publ. BMG Ricordi SpA/Curci Ed. Srl (P) 1966
Track 11: 2:56 - Publ. Francis Day Ediz. (P) 1966
Track 12: 1:46 - "Rita la zanzara" film score stereo - Publ. BMG Ricordi SpA (P) 1966
Track 13: 2:35 - (P) 1966
Track 14: 2:41 - "Rita la zanzara" film score - Publ. BMG Ricordi SpA (P) 1966
Track 15: 3:08 - Publ. BMG Ricordi SpA (P) 1967
Track 16: 2:45 - Publ. BMG Ricordi SpA (P) 1967
Track 2-17: 3:11 - "Non stuzzicate la zanzara" film score Publ. BMG Ricordi SpA (P) 1967
Track 18: 2:38 - "Non stuzzicate la zanzara" film score Publ. BMG Ricordi SpA (P) 1967
Track 19: 3:08 - Publ. SIAE (P) 1967
Track 20: 4:15 - full version "Little Rita nel west" film score Publ. BMG Ricordi SpA (P) 1967
Orch.: Luis Enriquez Bacalov with the "4+4" by Nora Orlandi (1)
Arr.: Luis Enriquez Bacalov (2)
Cond.: Luis Enriquez Bacalov (3-6-12-13-14-18)
Cond.: Ennio Morricone (4)
Orch.: Luis Enriquez Bacalov with the "I Cantori Moderni di Alessandroni" (5-7-8-10-11-15)
Cond.: Guido Relly (9)
Cond.: Franco Pisano (16)
Orch.: Guido Relly with the "4+4" by Nora Orlandi
Cond.: Robby Poitevin