海阔天空
321, 2355565, 6711117656, 6555321, 3432232 32211121, 321, 67111117655321, 111122123, 321 111122, 55321, 1111222171 321, 2355565, 6711117656, 6555321, 3432232 32211121, 321,
Level 2 (2.2 octaves) natural notes
321, 2355565, 6711117656, 6555321, 3432232 32211121, 321, 67111117655321, 111122123, 321 111122, 55321, 1111222171 321, 2355565, 6711117656, 6555321, 3432232 32211121, 321,