给出一个适合放松的音乐播放列表。
以下是一个适合放松的音乐播放列表：

1. "Weightless" by Marconi Union
2. "Ambre" by Nils Frahm
3. "Gymnopédie No. 1" by Erik Satie
4. "Clair de Lune" by Claude Debussy
5. "Spiegel im Spiegel" by Arvo Pärt
6. "Morning" by Edvard Grieg
7. "Lullaby" by Johannes Brahms
8. "Moonlight Sonata" by Ludwig van Beethoven
9. "Adagio for Strings" by Samuel Barber
10. "The Blue Danube" by Johann Strauss II