To listen to Hippie Soul Cafe on your Echo device:
STEP 1 – Enable skill on your device or skills app.
Say, “Alexa, enable Hippie Soul Cafe”
STEP 2 – Once enabled, to play in the future just say “Alexa, open Hippie Soul Cafe”
You can also install from the Amazon Skills store here: https://www.amazon.com/Hippie-Soul-Cafe/dp/B07YKJKVFJ