Very nice aesthetic and I liked to listen to the classic piano playing on the radio as I tried to figure out the puzzle. I don't usually play puzzle games, so deciphering the morse code was quite a challenge but I managed to get the gist of each of the messages (although, I didn't know how to apply two of them).
[Spoilers ahead maybe]
The colored buttons had me stumped and I somehow managed to get past there by randomly trying permutations. At this point its been over 2 hours and I think I've given up.
Bit hard for me but I like the gameplay and mood. :)