找一首适合这种心情的歌曲：悲伤而柔和。
"Hallelujah" by Jeff Buckley, "Skinny Love" by Bon Iver, "Someone Like You" by Adele, "Mad World" by Gary Jules, "River" by Joni Mitchell, "Changes" by David Bowie, "Piano Man" by Billy Joel, "Landslide" by Fleetwood Mac.