At least according to [this list](https://www.digitaldreamdoor.com/pages/best_songs-psych.html). Saving here in case it vanishes.
Edited by Rick Varner and Last Updated: 2015-01-05
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1. Tomorrow Never Knows - The Beatles
2. The American Metaphysical Circus - The United States of America
3. Grace - Country Joe & The Fish
4. Interstellar Overdrive - Pink Floyd
5. Are You Experienced - Jimi Hendrix Experience
6. At The Mountains of Madness - H.P. Lovecraft
7. Strawberry Fields Forever - The Beatles
8. Dark Star - Grateful Dead
9. Bass Strings - Country Joe & The Fish
10. Lucy In The Sky With Diamonds - The Beatles
11. Spare Chaynge - Jefferson Airplane
12. Strange Days - The Doors
13. Other Side of The Sky - Gong
14. My White Bicycle - Tomorrow
15. Translucent Carriages - Pearls Before Swine
16. White Rabbit - Jefferson Airplane
17. Beacon From Mars - Kaleidoscope
18. Season of The Witch - Donovan
19. Venus In Furs - The Velvet Underground
20. Magoo - Country Joe & The Fish
21. Comin' Back To Me - Jefferson Airplane
22. Astronomy Domine - Pink Floyd
23. Feel Flows - The Beach Boys
24. The Parable of Arable Land - The Red Crayola
25. I Am The Walrus - The Beatles
26. Shifting Sands - West Coast Pop Art Experiemental Band
27. Horse Latitudes - The Doors
28. Bracelets of Fingers - The Pretty Things
29. The Red Telephone - Love
30. Electrallentando - H.P. Lovecraft
31. Castle In The Clouds - Gong
32. All Is One - Eric Burdon and The Animals
33. The Child Bride - Earth Opera
34. Section 43 - Country Joe & The Fish
35. Eight Miles High - The Byrds
36. I've Got Levitation - 13th Floor Elevators
37. Hallucinations - Tim Buckley
38. Still I'm Sad - The Yardbirds
39. Maiden of The Cancer Moon - Quicksilver Messenger Service
40. Dear Mr Fantasy - Traffic
41. 1906 - West Coast Pop Art Experimental Band
42. The Ballad of Freddie & Harry - Clear Light
43. Itchycoo Park - Small Faces
44. Nightfall - The Incredible String Band
45. Keep Your Mind Open - Kaleidoscope
46. Hurdy Gurdy Glissando - Steve Hillage
47. Cloud Song - The United States of America
48. Sky Pilot - Eric Burdon & The Animals
49. Mind Gardens - The Byrds
50. Oxo - Bruce Palmer
51. Mechanical World - Spirit
52. Dancing Madly Backwards - Captain Beyond
53. Set The Controls For The Heart of The Sun - Pink Floyd
54. Heaven Is In Your Mind - Traffic
55. And The Gods Made Love - Jimi Hendrix Experience
56. Orange & Red Beams - Eric Burdon & The Animals
57. Ether Ships - Steve Hillage
58. Leiyla - West Coast Pop Art Experimental Band
59. Creation - The Incredible String Band
60. Rack My Mind - The Yardbirds
61. White Bird - It's a Beautiful Day
62. In My First Mind - Steve Miller Band
63. Splash, Now I'm Home - 13th Floor Elevators
64. Two Weeks Last Summer - Dave Cousins
65. See Emily Play - Pink Floyd
66. A Child's Smile - Clear Light
67. And I Wish I Were Stoned - Caravan
68. The Beauty of Time Is That It's Snowing - Steve Miller Band
69. Yoo Doo Right - Can
70. Now Your Time Has Come - Tomorrow
71. Joy of a Toy - Soft Machine
72. Images of April - Pearls Before Swine
73. Paper Sun - Traffic
74. Rosemary - Grateful Dead
75. I'm Five Years Ahead of My Time - Third Bardo
76. Ritual #1 - West Coast Pop Art Experimental Band
77. Just The Thought - Eric Burdon & The Animals
78. Paranoia #2 - Hawkwind
79. Flashback - Moving Sidewalks
80. Death By Fire - Earth Opera
81. Magic Man - Caravan
82. Pat's Song - Country Joe & The Fish
83. Lather - Jefferson Airplane
84. You're Gonna Miss Me - 13th Floor Elevators
85. Walking Thru My Dreams - The Pretty Things
86. Medication - The Chocolate Watch Band
87. Roller Coaster - 13th Floor Elevators
88. Time Has Come Today - The Chambers Brothers
89. Armenia City in The Sky - The Who
90. Green of My Pants - The Red Crayola
91. Fantasy - Fifty Foot Hose
92. A Question of Temperature - The Balloon Farm
93. She Comes In Colors - Love
94. Iron Butterfly Theme - Iron Butterfly
95. Alice In Blunderland - Captain Beefheart & The Magic Band
96. Piece For Piano & Electric Bass Guitar - The Red Crayola
97. 10,000 Words In a Cardboard Box - Aquarian Age
98. Upside Down - Hawkwind
99. Madman Running Through The Fields - Dantalian's Chariot
100. The Spiritual Death of Howard Greer - Touch