Edgar spends the day trying to find some relief for his PTSD.
Tell You Something — Charizma & Peanut Butter Wolf
Opening scene as Edgar tries to sleep, then works out in the dark and sings to himself Plays AGAIN when the newspaper gets thrown at him and he starts running
Something Like a Feeling (That Feels So Right) [from You're the Worst] — Starlight Tidepool
Song that Edgar is playing in his car on cassette for the 2nd half of the episode Plays again at end of episode while he is riding in the car on the tow truck (SEE "QUESTIONS" BELOW for DETAILS)