ER season 13 has 23 episode guides and currently identifies 48 soundtrack songs.
ER season 13 episodes
Episode 1
Sep 21, 2006
2 songs
Episode 2
Sep 28, 2006
4 songs
Episode 3
Oct 05, 2006
4 songs
Episode 4
Oct 12, 2006
2 songs
Episode 5
Oct 19, 2006
2 songs
Episode 6
Nov 02, 2006
1 song
Episode 7
Nov 09, 2006
2 songs
Episode 8
Nov 16, 2006
3 songs
Episode 9
Nov 23, 2006
1 song
Episode 10
Nov 30, 2006
--
Episode 11
Dec 07, 2006
4 songs
Episode 12
Jan 04, 2007
1 song
Episode 13
Jan 11, 2007
1 song
Episode 14
Feb 01, 2007
--
Episode 15
Feb 08, 2007
1 song
Episode 16
Feb 15, 2007
1 song
Episode 17
Feb 22, 2007
4 songs
Episode 18
Apr 12, 2007
3 songs
Episode 19
Apr 19, 2007
--
Episode 20
Apr 26, 2007
1 song
Episode 21
May 03, 2007
10 songs
Episode 22
May 10, 2007
--
Episode 23
May 17, 2007
1 song