Every vegetable has its own merits, so I will do my best
Bach's "Aria on the G String", Schubert's "Serenade", "Ave Maria", Saint-Sa?ns' "The Swan", Rachmaninov's "Vocal Exercises", Beethoven's "Spring Sonata", Massenet's "Meditations", and Waxman's arrangement of "Carmen's Fantasia", exactly eight pieces. In terms of resources, You can download it from Kugou and QQ Music