Happy triads

Grant Amold

Stepping on the rainy street（教育附加费，29590）

The Daydream

Happy Halloween (Vocaloid)

Junky

Be Happy(13NRV)

Dixie D'Amelio

stepping on the rainy street（雨中漫步）（扒谱：欣仔老师）

Renodia（The Daydream）

12 Variations（on “Happy Birthday”）

Samuel Valentin

Happy and Gay (Op.99)

C.Bohm

If You're Happy and You Know It

Children's song

Hey Jude

The Beatles

眼泪 Tears

The Daydream