Serenade of Love (Torselli)

Spring 2 and Winter 2 in Vivaldi's "The Four Seasons"

The Silence of the Distant - (Lin Hai)

Quiet Hours - Contemplation of Love

Bach's Love Concerto

Song of the G String (Bach)

Praise for Love by Gounod

Chopin: Nocturne No. 2 in E flat major

The soft dialogue between violin and piano "I Love You So"

The above are available for selection. There are many more, so I won’t list them. I recommend Praise of Love and Spring in Four Seasons 2, especially Spring 2, which is very gentle and subtle, and no matter how the theme changes, it will always be just right.