It's hard to determine what someone finds 'arty,' so this is my best attempt (keyword, attempt) at doing exactly that for you. Enjoy!
01. Four Tet - "Hands" (Rounds)
02. A Boy Named Thor - "Pie and Broken Hearts" (Yesterday's Song)
03. Neutral Milk Hotel - "Calypso Part One" (Invent Yourself a Shortcake)
04. Deerhoof - "All Rise" (Bibidi Babidi Boo)
05. Karl Blau - "Ode to Ocean" (Beneath Waves)
06. God is an Astronaut - "The End of the Beginning" (The End of the Beginning)
07. Donovan - "The Observation" (Mellow Yellow / Wear Your Love Like Heaven)
08. Japanther - "Critical" (Dump the Body In Rikki Lake)
09. Four Tet - "She Moves She" (Rounds)
10. Grizzly Bear - "Campfire" (Horn of Plenty)
11. Imogen Heap - "Hide and Seek" (Speak for Yourself)
12. Her Space Holiday - "Gravity Fails Us" (Audio Astronomy)
13. Jandek - "No Slow Ones" (Telegraph Melts)
14. Lightning Bolt - "Crown of Storms" (Wonderful Rainbow)
15. Animal Collective - "Bees" (Feels)