The original score for Person of Interest is composed by Ramin Djawadi. In addition to the original music, producers Jonathan Nolan and Greg Plageman select contemporary songs and instrumental music to underscore specific scenes. Popular music is chosen to add emphasis in a scene ("I'm Afraid of Americans"), set the tone of a scene ("Boom Boom"), or to sum up the story at the end of an episode ("Sinnerman"); occasionally source music is played which we hear along with the characters ("Para La Habana"). In some cases, the lyrics of the song help move the story forward ("Exit Music (For a Film)"), in the style of a music video.
The following is a compilation of songs and instrumental music used in the series to date.
- "The Truth" by Handsome Boy Modeling School - End of episode.
- "Reaching For Salvation" by Sugaray - Music playing at the bar when Reese meets Sam Latimer's team.
- "Live With Me" by Massive Attack - End of episode.
- "Intro" by The xx - End of episode.
- "New York" by Cat Power - End of episode.
- "Sinnerman" by Nina Simone - End of episode.
- "I Know You Are But What Am I?" by Mogwai - End of episode.
- "It's Personal" by The Radio Dept. - End of episode.
- "When Things Explode" by Unkle - End of episode.
- "Rising Down" by The Roots (ft. Mos Def & Styles P) - During the basketball game
- "If I Had a Heart" by Fever Ray - End of episode.
- "Down Boy" by Yeah Yeah Yeahs - End of episode.
- "Black & Bleach" by Further Down - At the bar where Reese and Fusco meet.
- "Amongster" by Poliça - End of episode.
- "Burn My Shadow" by Unkle - When Reese goes to rescue Taylor Carter.
- "Ne Me Quitte Pas" by Nina Simone - End of episode.
- "Lonely Soul" by Unkle - End of episode.
- "Revenge" by Danger Mouse and Sparklehorse - End of episode.
- "I'm Afraid of Americans" by David Bowie - During the taxi ambush/End of episode.
- "Moon Drop" by Sherry St. Germain - During clothing store scene at the beginning of the episode.
- "Titanium" by David Guetta feat. Sia - During the first dance club scene.
- "Say My Name" by Porter Robinson - During the second dance club scene.
- "She's Long Gone" by The Black Keys - End of episode.
- "The Greatest" by Cat Power - End of episode.
- "Building Steam with a Grain of Salt" by DJ Shadow - End of episode.
- "Boom Boom" by John Lee Hooker - During the card game scene.
- "It Serves You Right to Suffer" by John Lee Hooker - When Graham makes his decision/End of episode.
- "One of These Mornings" by Moby featuring Patti LaBelle - End of episode.
- "For You" by Trilogy featuring Fred The Godson - Bar scene where Finch meets D3MON8.
- "Gimme Shelter" by The Rolling Stones - End of episode.
- The Hop by Radio Citizen - Club scene with Carter.
- "Eminence Front" by The Who - When Reese gets released.
- "Ante Up (Robin Hoodz Theory)" by M.O.P. - Just after opening credits, during basketball game.
- "Future Starts Slow" by The Kills - End of episode.
- "She's Long Gone" by The Black Keys - In the secret sailor's club.
- "Feeling Good" by Nina Simone - After the shootout with the Russians.
- "Falling in Love" by Ben Rector - Opening song of Wayne Kruger's anniversary video.
- "Birthright" (Birthwrong remix by Blue Stahli) by Celldweller - In the edited portion of the anniversary video.
- "Pieces Of Me" by Dying Regret - The first song that comes over the car radio when the car is "hacked" and taken over. Soon after that another song play and video starts to roll on the on-screen nav screen.
- "Give Me Everything" by Pitbull ft. Ne-Yo - when Carter, Shaw and Zoe enter Club Blur.
- "I Know U Know" by Tatiana Owens - when Ian Murphy enters Club Blur.
- "Hurt" by Johnny Cash - Intro song.
- "Miami Showdown" by Digitalism - During the shootout between Reese and the Marshals.
- "Colour in Your Hands" by D.L.i.d - End of episode.
- "Whiskey" by The Sam Morrison Band - Heard in the background when Reese orders a whiskey during the first bar scene.
- "Moving in Stereo" by The Cars - While young Harold is with friends by the phone booth.
- "The Sky is Crying" by Elmore James - During the fight scene at the bar in the rain.
- "Take California" by Propellerheads - during Finch's adventures in 3D printing.
- "Battleflag" by Lo Fidelity Allstars - during the break-in.
- "I Might Be Wrong" by Radiohead - End of episode.
- "Low" by Cracker - during the bowling scene
- "Fade into You" by Mazzy Star - During the ballroom dance scene.
- "Para La Habana" by Johannes Linstead - During the scene with Root and Shaw in Miami.
- "Medicine" by Daughter - End of episode.
- "Exit Music (For a Film)" by Radiohead - End of episode.
- "I'd Love To Change The World" by Jetta - End of episode.
- "Whatta Man" by Salt-n-Pepa feat. En Vogue - When Lionel and Andre first meet at the bar.
- "Too Marvelous for Words" by Frank Sinatra- When Andre brings Lionel to a bar to meet women.
- "Gun" by Emiliana Torrini - End of episode.
- "Young Men Dead" by The Black Angels - During the scene when Root and Martine Rousseau fight in the lobby.
- "Fortune Days" by The Glitch Mob - During the simulations.
- "The Violent Bear It Away" by Moby - End of episode
- "U Can't Touch This" by MC Hammer - One of the jurors' ringtone
- "Blame" by Calvin Harris feat. John Newman - In the club
- "Happy New Year" by Nat King Cole - End of episode
- "Welcome to the Machine" by Pink Floyd - Climax
- "No Wow" by The Kills - Beginning of episode
- "Do I Move You?" by Nina Simone - Root and Shaw's love scene in the simulation
- "Fake Empire" by The National - End of episode
- "New Dawn Fades" by Moby - Root and Shaw's gun battle with Samaritan operatives
- "The Day the World Went Away" by Nine Inch Nails - End of episode
- "Bunsen Burner" by The Cuts - Finch's rooftop scenes
- "Metamorphosis One" by Phillip Glass - John's sacrifice and final shootout with Samaritan operatives on the rooftop