100 music genres, listed alphabetically:

1. Acoustic
2. Alternative
3. Ambient
4. Avant-garde
5. Baroque
6. Bass
7. Big Band
8. Blues
9. Bossa Nova
10. Breakbeat
11. Celtic
12. Chamber
13. Choral
14. Classical
15. Country
16. Dance
17. Death Metal
18. Disco
19. Drum and Bass
20. Dub
21. Dubstep
22. Easy Listening
23. Electronic
24. Emo
25. Experimental
26. Folk
27. Funk
28. Fusion
29. Garage
30. Glam
31. Gospel
32. Gothic
33. Grime
34. Grindcore
35. Hardcore
36. Heavy Metal
37. Hip Hop
38. House
39. Indie
40. Industrial
41. Jazz
42. Jungle
43. K-Pop
44. Latin
45. Lounge
46. Math Rock
47. Metalcore
48. Minimal
49. Modern Rock
50. Motown
51. Neo-Classical
52. New Age
53. New Wave
54. Noise
55. Opera
56. Orchestral
57. Pop
58. Post-Punk
59. Post-Rock
60. Progressive
61. Psychedelic
62. Punk
63. R&B
64. Ragtime
65. Rap
66. Reggae
67. Rock
68. Rockabilly
69. Salsa
70. Samba
71. Shoegaze
72. Singer-Songwriter
73. Ska
74. Smooth Jazz
75. Soul
76. Soundtrack
77. Space Rock
78. Swing
79. Synth-pop
80. Tango
81. Techno
82. Thrash Metal
83. Trance
84. Trip Hop
85. Tropical House
86. Two-Step
87. Underground
88. Urban
89. Vaporwave
90. World
91. Worldbeat
92. Yacht Rock
93. Zydeco
94. Funk Metal
95. Grunge
96. Krautrock
97. Post-Hardcore
98. Post-Metal
99. Psychobilly
100. Surf Rock