Opera
| Composed by | Claudio Simonetti |
| Published by | Deep Red |
| Release type | Film Score - Official Release |
| Format | 1 Digital - 15 tracks |
| Release date | December 31, 1986 |
| Duration | 00:44:26 |
| Genres |
| 1 | OperaClaudio Simonetti | 02:23 |  |
| 2 | CrowsClaudio Simonetti | 02:42 | |
| 3 | Impending DangerClaudio Simonetti | 01:46 | |
| 4 | ConfusionClaudio Simonetti | 03:25 | |
| 5 | The MaskClaudio Simonetti | 01:58 | |
| 6 | Knight of the NightClaudio Simonetti | 02:46 | |
| 7 | The Cinema ShowClaudio Simonetti | 01:58 | |
| 8 | CosmoClaudio Simonetti | 03:46 | |
| 9 | Opera (Original Demo Played on Piano 1987)Claudio Simonetti | 02:25 | |
| 10 | Crows (Simonetti Horror Project Version 1990)Claudio Simonetti | 03:08 | |
| 11 | Days of Confusion (Simonetti Horror Ii Project Version 1991)Claudio Simonetti | 03:51 | |
| 12 | Steel Grave - Steel GraveClaudio Simonetti | 03:11 | |
| 13 | Confusion (Reprise)Claudio Simonetti | 02:19 | |
| 14 | Opera - Daemonia (Live at Prog Festival 2002)Claudio Simonetti | 05:23 | |
| 15 | Confusion (Original Demo Played on Piano 1987)Claudio Simonetti | 03:25 | |
