Pianist Mystery

[Abroy]

Escape from this room full of beautiful music before you become deaf. Have fun and good luck!

Play here

Please use spoilers for hints and walkthroughs:
[spoiler=Title Here]Enter text here...[/spoiler]

Please do not post a video walkthrough for 7 days.

[graywolf]

Nice one, where to use knife took a bit.

Piano keys...L/S.

One of the puzzle answers came from here.

[old biker]

out ,good one

[SueJ999]

Out! Toughest thing for me was finding the door!

[Scissors]

I had trouble with the knife as well, GW. Just took some time.

[Purp]

And out.

[aurion]

Haven't found a knife yet .. just a couple of shapes.
Found lots of different views .. but nothing to click on once I'm there.

I'm out .. but still not sure about the view with the black chair and a plant. Good puzzles, though.

[Yvonne]

Some views are red herrings
I am out too
Nice game