Piano Escape

Walkthrough:
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-get some green dried herb from the left under of the bed.
-get the lighter from the drawer.
-get the paper after dropping the books on the shelf.
-click the right side of the green carpet and get a white paper.
-put the herbs on the white paper and get a cigar.
-light it with the lighter and give it to the dog.
-it will say : "remove 6 lines to leave 2 squares"
-go to the box and move the lines and have 2 squares.
-get the key in the box.
-open the piano with the key and play the song:
-imagine the white keys numbers 1-8 and black keys 1-5 from left to right.
 w6-w6-w6-w6-w6-w6
 w6-w8-w4-w5-w6-b5
 b5-b5-b5-b5-w6-w6
 w6-w5-w5-w6-w5-w8
-play the song and get the key.
-drag the key on the door and escape.