The Flash season 4 has 23 episode guides and currently identifies 82 soundtrack songs.
The Flash season 4 episodes
Episode 1
Oct 10, 2017
5 songs
Episode 2
Oct 17, 2017
9 songs
Episode 3
Oct 24, 2017
2 songs
Episode 4
Oct 31, 2017
4 songs
Episode 5
Nov 07, 2017
9 songs
Episode 6
Nov 14, 2017
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Episode 7
Nov 21, 2017
6 songs
Episode 8
Nov 28, 2017
--
Episode 9
Dec 05, 2017
8 songs
Episode 10
Jan 16, 2018
--
Episode 11
Jan 23, 2018
2 songs
Episode 12
Jan 30, 2018
2 songs
Episode 13
Feb 06, 2018
4 songs
Episode 14
Feb 27, 2018
5 songs
Episode 15
Mar 06, 2018
4 songs
Episode 16
Mar 13, 2018
2 songs
Episode 17
Apr 10, 2018
2 songs
Episode 18
Apr 17, 2018
1 song
Episode 19
Apr 24, 2018
3 songs
Episode 20
May 01, 2018
4 songs
Episode 21
May 08, 2018
2 songs
Episode 22
May 15, 2018
3 songs
Episode 23
May 22, 2018
5 songs