One area in which Star Trek: Discovery soars is the music. The score, composed by Fargo's Jeff Russo, combines the classic style of Trek composer Jerry Goldsmith with the more modern television approach of a composer like Ramin Djwadi. Fans of Trek music are lucky enough to get a bonus theme to the new show, because an unused soundtrack has just been released.

Cliff Eidelman is no stranger to war with the Klingons, having composed the score to Star Trek VI: The Undiscovered Country. Before Russo was hired for the job, former showrunner Bryan Fuller approached Eidelman and discussed some ideas for the soundtrack.

"[Bryan] described what they were doing and he was so interested in me possibly scoring this series, he asked me if I would write a theme," Eidelman said. "So, I went ahead and I was encouraged and thought this was going to happen and I would love to get back into doing another Star Trek series."

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"Into the Unknown" is a bit more traditional than the music for Discovery, but it has a spooky air of menace to it that captures the moral greys of the new Trek show. Fuller and Eidelman were so happy with the music, Eidelman went on to record three more pieces that were released as an EP.

Airing Sundays at 8:30 p.m. on CBS All Access, Star Trek: Discovery stars Sonequa Martin-Green, Doug Jones, Jason Isaacs, Anthony Rapp, Shazad Latif, Mary Wiseman, Wilson Cruz, Mary Chieffo and James Frain.