The BGM (background music) in Happy Landlords includes the following types:

1. Classic version_Welcome: The background music played when the game starts, played in a loop.

2. Classic version_Normal: The background music played while the game is in progress, played in a loop.

3. Classic version_Normal2: The background music played while the game is in progress, played in a loop.

4. Classic version_Exciting: The background music played when the player plays cards, played in a loop.

5. Classic version_Win: The background music played when the player wins, played in a loop.

6. Classic version_Lose: The background music played when the player fails, played in a loop.

7. Nostalgic version_Welcome: Same as classic version_Welcome.

8. Nostalgic version_Normal: Same as classic version_Normal.

9. Nostalgic version_Normal2: Same as classic version_Normal2.

10. Nostalgic version_Exciting: Same as classic version_Exciting.

11. Nostalgic version_Win: Same as classic version_Win.

12. Nostalgic version_Lose: Same as classic version_Lose.

13. Elegant Piano_Welcome: Same as the classic version_Welcome.

14. Elegant Piano_Normal: Same as the classic version_Normal.

15. Elegant Piano_Exciting: Same as the classic version_Exciting.

16. Elegant Piano_Win: Same as the classic version_Win.

17. Elegant Piano_Lose: Same as the classic version_Lose.

18. Surprise Party_Welcome: Same as classic version_Welcome.

19. Surprise Party_Normal: Same as the classic version_Normal.

20. Surprise Party_Exciting: Same as the classic version_Exciting.

21. Surprise Party_Win: Same as classic version_Win.

22. Surprise Party_Lose: Same as the classic version_Lose.

23. Happy Travel_Welcome: Same as the classic version_Welcome.

24. Happy Travel_Normal: Same as the classic version_Normal.

25. Happy Travel_Exciting: Same as the classic version _Exciting.

26. Happy Travel_Win: Same as the classic version_Win.

27. Happy Travel_Lose: Same as the classic version_Lose.