Yes, there is a soundtrack CD accompanying last night's episode of The Flash. That's the good news. The bad news is that it's available only through digital media. I'd rather have a CD that I can pop into my player and revisit the episode, "Duet", as often as needed.
The episode's closing number, "Running Home To You", was written by two of the songwriters of the Oscar-winning "La La Land". Barry Allen (Grant Gustin) chooses this as he prepares to re-propose to his girlfriend, Iris West (Candice Patton).
There was only one other original track, written by Crazy Ex-Girlfriend star Rachel Bloom, and we'll probably visit that soon. The show also featured covers of Henry Mancini's classic "Moon River" and Jackie DeShannon's "Put a Little Love in Your Heart", as well as some material from "Guys & Dolls" that showcased Broadway vets Jesse L. Martin ("Rent") and, visiting from Legends of Tomorrow, albeit as different characters, Victor Garber & John Barrowman.
More tracks will follow over the next few days, unless of course WB sets about blocking the videos from YouTube and other sites to protect copyrights. In this case, they really should see about releasing "Running" as a single for radio airplay.