以下是一些适合云海的背景音乐，供您参考：
1. "The Moldau" - Paul Lincke
2. "Adagio for Strings" - Samuel Barber
3. "Clair de Lune" - Claude Debussy
4. "Nuvole Bianche" - Ludovico Einaudi
5. "Flight of the Bumblebee" - The Cinematic Orchestra
6. "In the Wind" - Kitaro
7. "The Four Seasons (Winter)" - Vivaldi
