Entombed Codes -

Hint: Solving the musical puzzle on level 1:
The musical puzzle on level 1 has the following pattern. Number the shore levels in the bar on the right from top to bottom as 1 to 7. Number the waves from right to left as 1 to 7. When the bar is highlighted, write down the corresponding number. Wait for all seven notes, then click the corresponding numbers on the waves.