Inventions from the Blue Line is a 1994 music CD containing some of the best known TV cop-show themes written by Mike Post

Mike Post

Mike Post is an American multi-Grammy and Emmy Award winning composer best known for scoring some of the most popular TV theme songs in the United States, for primetime series such as Law & Order, NYPD Blue, The Rockford Files, LA Law, Quantum Leap, Magnum, P.I., Hill Street Blues, among numerous...

 as of that point.

The album features several themes from the TV series NYPD Blue

NYPD Blue

NYPD Blue is an American television police drama set in New York City, exploring the internal and external struggles of the fictional 15th precinct of Manhattan...

. It also includes themes from the series' Law & Order

Law & Order

Law & Order is an American police procedural and legal drama television series, created by Dick Wolf and part of the Law & Order franchise. It aired on NBC, and in syndication on various cable networks. Law & Order premiered on September 13, 1990, and completed its 20th and final season on May 24,...

, Silk Stalkings

Silk Stalkings

Silk Stalkings is a TV crime drama originally shown on CBS in 1991 as part of the network's late-night Crimetime After Primetime programming package, and rebroadcast on the USA Network. After CBS ended the Crimetime experiment in 1993, the series ran exclusively on USA until its finale in the...

and Renegade

Renegade (TV series)

Renegade is an American television series that ran for 110 episodes spanning 5 seasons between September 19, 1992 and April 4, 1997.The series stars Lorenzo Lamas as Reno Raines, a police officer who is framed for a murder he didn't commit. Raines goes on the run and joins forces with Native...

.

The cover of the album is taken in the syle of the opening credits from the Law & Order TV series.

In the liner notes, Post discusses his late father, Sam Postil, and the admiration for law enforcement officers that Sam instilled in Mike. He also refers to police in the traditional nickname of "blues", as in "The Thin Blue Line

The Thin Blue Line

The Thin Blue Line is a colloquial term for police and police forces, designed by a police officer after seeing a blue light reflecting on a black marble wall during the first Official Police weeks in Washington DC...

" which refers to the police in general and to police camaraderie (one of the tracks is called "The Blue Line", which Post calls 'the comradery [sic]http://en.wiktionary.org/wiki/camaraderie#Alternative_spellings theme').

Track listing

1. Theme from NYPD Blue – 3:28
2. One Five Open for Business – 4:12
3. The Blue Line – 3:45
4. A Rough Wolf – 3:57
5. A Song for Rudy – 4:14
6. Number 9 Has the Heart of Lion – 3:40
7. Law & Order – 3:15
8. Silk Stalkings – 3:29
9. Theme from Renegade – 3:35
10. Cop Files – 3:25