Castle season 8 has 22 episode guides and currently identifies 40 soundtrack songs.
Castle season 8 episodes
Episode 1
Sep 20, 2015
1 song
Episode 2
Sep 27, 2015
1 song
Episode 3
Oct 04, 2015
5 songs
Episode 4
Oct 11, 2015
3 songs
Episode 5
Oct 18, 2015
2 songs
Episode 6
Nov 09, 2015
2 songs
Episode 7
Nov 16, 2015
--
Episode 8
Nov 23, 2015
1 song
Episode 9
Feb 08, 2016
8 songs
Episode 10
Feb 14, 2016
2 songs
Episode 11
Feb 15, 2016
1 song
Episode 12
Feb 22, 2016
1 song
Episode 13
Feb 29, 2016
--
Episode 14
Mar 07, 2016
1 song
Episode 15
Mar 21, 2016
--
Episode 16
Apr 03, 2016
5 songs
Episode 17
Apr 10, 2016
--
Episode 18
Apr 17, 2016
--
Episode 19
Apr 24, 2016
--
Episode 20
May 01, 2016
5 songs
Episode 21
May 08, 2016
1 song
Episode 22
May 15, 2016
1 song