What's the name of the pure music in this episode of Four Seas Family?
Pure music is the waltz of the sound of spring. Waltz of the Voice of Spring is an immortal masterpiece of the famous Austrian musician johann strauss II. Written in 1883. This song is still full of vitality, and it exudes the breath of youth everywhere. The whole song is quite artistic, appealing to both refined and popular tastes and enduring. The song vividly depicts the scene of spring returning to the earth, melting snow and ice, and a vibrant school.