https://www.youtube.com/watch?v=Gg8pB9-6T8g&t=292s
2) Peaceful Piano & Soft Rain - Relaxing Sleep Music, A Bitter Rain
https://www.youtube.com/watch?v=hj83cwfOF3Y&list=RDLVKaSFoOF6Yw0&index=12
3) 8 Hours of Beautiful Piano Music • Sleep Music, Fall Asleep, Relaxing Sleeping Music
https://www.youtube.com/watch?v=OeHLHNKQCXA
4) 活化腦部音樂[60分鐘] 第一輯 腦部大揭秘 激活大腦前頭葉! 腦內海馬體 智力UP 記憶力UP
https://www.youtube.com/watch?v=jSIcR3RNVio
https://www.youtube.com/watch?v=VADfDjLrYRA&list=PLQ_PIlf6OzqI1DkydTILSrgGtiFS0ucub
5) Beautiful Piano Music, Vol. 1 ~ Relaxing Music for Studying, Relaxation or Sleeping
https://www.youtube.com/watch?v=lCOF9LN_Zxs&list=PLQ_PIlf6OzqI1DkydTILSrgGtiFS0ucub&index=4