Many authors that I know talk about the songs that influence their writing, or that they listen to while writing.  Some even go so far as to have playlists at the end of the book matching a song to a particular chapter or scene.  Well, I do listen to music while I write, but not necessarily specific per chapter.  Interestingly, the playlist for Do No Harm was comprised of songs exclusively from the Two Steps From Hell composing team of Nick Phoenix and Thomas Bergersen.  Originally, they composed music for movie trailers, TV commercials and other entertainment industry uses.  The music became so popular on YouTube that TSFH started composing and releasing music for the public, with fantastic results.  So the DNH playlist came entirely from their recent releases in the Epic genre.  Here's an example:
Do No Harm - Two Steps From Hell - Playlist
  • (Track - Album - Artist)
  • Colors of Love - Sun - Thomas Bergersen
  • Enchantress - Vanquish - Two Steps From Hell
  • Unleashed - Unleashed - Two Steps From Hell
  • Never Give Up On Your Dreams - Unleashed - Two Steps From Hell
  • Westward - Unleashed - Two Steps From Hell
  • Evergreen - Vanquish - Two Steps From Hell
  • Miracles - Miracles - Two Steps From Hell
  • Men of Honor - Miracles - Two Steps From Hell
  • Winterspell - Skyworld - Two Steps From Hell
  • Flight of the Silverbird - Battlecry - Two Steps From Hell
  • Star Sky - Battlecry - Two Steps From Hell
  • Stronger Faster Braver - Battlecry - Two Steps From Hell
  • Femme Fatale - Illusions - Thomas Bergersen
  • Birth of a Hero - Nero - Two Steps From Hell
  • Illusions - Illusions - Thomas Bergersen
  • Aura- Illusions - Thomas Bergersen
  • Impossible - Unleashed - Two Steps From Hell
  • New Life - Sun - Thomas Bergersen
  • Wild Heart - Unleashed - Two Steps From Hell
  • Secret Melody - Unleashed - Two Steps From Hell
  • Two Hearts - Sun - Thomas Bergersen
  • Compass - Miracles - Two Steps From Hell
"Awesome Mix" - General Writing Playlist
In general, I like a mixture of instrumental and vocal for general writing.  As a trombone player, I like a lot of orchestral music that features strong brass lines, like the Destiny 2 theme Inner Light above.  In addition to my TSFH favorites, I am quite partial to The Piano Guys, and the number of TPG songs I have in my "Awesome Mix" is too numerous to list here.  Likewise my selection of video game themes (esp. Halo) composed by Neil Davidge, Martin O'Donnell, Michael Salvatori and Kazuma Jinouchi. On the other hand, I like symphonic metal such as Nightwish and power metal such as Sabaton.  In fact, one of my short stories was inspired by Sabaton's The Last Stand.
So here's some of my more "eclectic" selections:
  • Winter Born - Cruxshadows
  • April Rain - Delain
  • The Sound of Silence - Disturbed
  • I Vow to Thee My Country (aka Jupiter by Holst)
  • Goodnight Moon - John Tesh
  • Looking for Space - John Denver
  • Lost - Michael Buble
  • Home - Michael Buble
  • Northwest Passage - Show of Hands
  • Your Wildest Dreams - Moody Blues
  • Transcendance - Lindsey Stirling
  • Ever Dream - Nightwish
  • Homeward Bound - US Navy Sea Chanters
  • Stand My Ground - Within Temptation
  • Against All Odds - Phil Collins
  • Windmills of Your Mind - Sting
  • I Believe in You - Il Divo
  • Test Drive - John Powell (From How to Train Your Dragon)
  • Gabriel's Oboe - Dallas Brass
  • Serenade - Jim Brickman
  • The Parting Glass - Face Vocal Band
  • Mountain Dance - Dave Grusin
  • What's the Price of a Mile? - Sabaton
Finally, for something totally different - Pineapple Spaceship by Nanobii - linked below for your enjoyment.