给出一首适合学习或专注时听的歌曲清单。
以下是一些适合学习或专注时听的歌曲清单：

1. "Weightless" by Marconi Union
2. "Clair de Lune" by Debussy
3. "Spiegel im Spiegel" by Arvo Pärt
4. "Gymnopédie No. 1" by Erik Satie
5. "The Four Seasons" by Vivaldi
6. "Can You Feel the Love Tonight" by Elton John
7. "Moonlight Sonata" by Beethoven
8. "Adagio for Strings" by Samuel Barber
9. "The Blue Danube" by Johann Strauss II
10. "Fantasia on a Theme by Thomas Tallis" by Ralph Vaughan Williams