Other than the above mentioned films I love the following ones:
- A Bay of Blood aka Twitch of the Death Nerve
- Opera
- Your Vice Is a Locked Room and Only I Have the Key
- Blood and Black Lace
- Don't Torture A Duckling
- Stagefright
- Dressed To Kill
- Forbidden Photos of a Lady Above Suspicion
- Red Queen Kills 7 Times
- What have they done to your daughters?
- Pieces
- Lizard in a Woman's Skin
- Spasmo
- What Have They Done To Solange?
- Seven Blood-Stained Orchids
- The Strange Vice of Mrs Wardh
- The Black Belly of the Tarantula
- A Blade In The Dark
I really need to see few of them again as I almost starts to forgetting about the kills and some major portion of the story.
Btw, I think we already have several discussion threads about Giallo films here.
This is one of them. But I never get tired to making a list about them as it's my one of the very favorite sub genre of Horror.