Marble Floor Room Escape

[GamersHood]

You've mistakenly entered this wonderful apartment which unfortunately for you has a very good security system and the door has locked itself behind you. Luckily there is a way to get out before the alarm goes off and the security company gets here. You'd better hurry. Good luck!

Marble Floor Room Escape

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, but I did miss the puzzle.

Backwards.

[govinda83]

Can't find the red key anywhere.

Nevermind. Found it.

[NannaJoy]

missing a key - missing two solutions. But it is 3 and that means nap time most days - or I'll sleep through dinner. Or I struggle to stay awake and miss a good tv show at night. thanks for letting me unload a bit. back later

Nice nap, dinner ok, and I am
OUT of this messy house .. at least door handle. You know what looks like to me?

[old biker]

nice one ,blue key had me really thinking

[SueJ999]

Very nice!! Gotta love that "Muck Off"!!

[Purp]

I'm out, with help.

[Kzin]

Nice one...

[Yvonne]

Nice one
Yellow key took a while but found the answer in the end

[Scissors]

Nice one
Yellow key took a while but found the answer in the end

What Yvonne said!

[julepero]

I had to brute force the blue key!!!
Once I did it, I finally understood that...

You have to count backwards the letters on the piano