1. Jamendo: Offers a wide variety of music genres to choose from, including rock, classical, and electronic music.
  2. Free Music Archive: Curated by librarians and musicologists, this site offers a wide range of music genres and styles.
  3. SoundCloud: Allows you to discover, stream, and download music from independent artists.
  4. YouTube Audio Library: Provides a collection of royalty-free music that you can use in your videos.
  5. Amazon Music: Offers a wide range of music genres, including pop, rock, and electronic music.
  6. Last.fm: Offers a wide range of music genres, including rock, pop, and electronic music.
  7. NoiseTrade: Offers a wide range of music genres, including rock, pop, and electronic music.
  8. PureVolume: Offers a wide range of music genres, including rock, pop, and electronic music.
  9. Spotify: Offers a wide range of music genres, including rock, pop, and electronic music.
  10. Bandcamp: Offers a wide range of music genres, including rock, pop, and electronic music.
  11. DatPiff: Offers a wide range of music genres, including hip hop and electronic music.
  12. Musopen: Offers a wide range of classical music, including symphonies, operas, and chamber music.

Note: Please note that some of the sites listed here may require you to create an account in order to download music, and some may not be available in all countries.