Press the green flag and listen!
Eventually it starts to fall apart.... and it's also currently unfinished... it just does the first and second parts. There are no sound files, just sound blocks. Check the code for proof. Full sheet music: https://musescore.com/alpakatale/dogsong-from-undertale Updates: 6-20-17: Now Part 2 is done! (it's not very different from part 1, just a couple of changes in the bass part)