The following are some Cantonese songs about gratitude to teachers and songs about gratitude to teachers for reference:

1. "Unforgettable Teacher": This is a song sung by Hong Kong singer Luo Man , the lyrics express gratitude to the teacher.

2. "Confucius": This is a song sung by Hong Kong singer Luo Man. The lyrics tell the story of Confucius and also express his gratitude to his teacher.

3. "Teacher": This is a song sung by Hong Kong singer Chen Baiqiang. The lyrics express his gratitude to the teacher.

4. "Campus Ditty": This is a song sung by Hong Kong singer Lin Zixiang. The lyrics tell about students' life on campus and also express their gratitude to their teachers.

5. "My Pride": This is a song sung by Hong Kong singer Kelly Chen. The lyrics express her gratitude to the teacher, but also express her confidence and pride in herself.

In addition to the above songs, there are also many songs about gratitude to teachers and Cantonese songs, which can be searched on music platforms.