I haven't listened to all of them yet. They are just some sugestions I found online. Songs that have similiar a "feeling" will be in bold and the one's I've already heard will be crossed.

• "The Inner Light" by the Beatles
• "Wild Flower" by Judy Collins
• "The Horrible Fanfare/Landslide/Exoskeleton" by Beck
• "A Very Cellular Song" by The Incredible String Band
• "How to Disappear Completely" by Radiohead
• Donovan
• "Gomper" by The Rolling Stones
• "Paper Sun" by Traffic
• "Paint It Black" by Rolling Stones
• "Friends" by Led Zeppelin