If you mean at the end, you use "teleportrait."

It's fairly easy to figure out where the picts go, the hard part is the piano playing itself, and it helps if you know your piano keys.
Once you have all 7 picts put them on the wall in their proper place,
you have to let the music finish playing before you put he next one up.
The goal is to click on each one of the pictures, then click the
keys on the piano. Once the piano is open, click the crank and
reproduce the sounds by stroking the correct keys. Repeat this step for
all 7 pictures.
picture closest to the door on top. the sequence is; A G E F D C
picture right below that one ( closest to the door) E E E G E E G
picture- big one at the bottom G A G E G A G E
second picture from the top row ( left to right ) E E F G G F E D
first picture on the left C E E E D E F E E D D D C D E C
third picture on the top (left to right) D E C D E F E C
fourth picture on the top C C D E D C C

Once you finish with all 7 pics, click on the door to go to the next room.