The Flash Season 8 Episode 17 -

“He’s not a weapon. He’s an instrument.”

“Kordell. I’m not here to fight. I’m here to listen.” the flash season 8 episode 17

In the real world, Kordell wakes up, calm. He focuses his power and releases a directed pulse that shatters Echo’s device—and sends Echo flying into a support pillar, unconscious. STAR LABS – NIGHT Kordell agrees to let Cisco build him a dampening collar so he can control his abilities. He sits with a new saxophone, playing a soft, melodic tune. “He’s not a weapon

“Boom. Literally. Bridges shake apart, buildings crumble.” I’m here to listen

Kordell laughs bitterly. “You can’t fix this. Every frequency in the city is a knife. I hear the whole song of the world at once, and it’s all wrong.”

“Barry, Echo’s broadcasting a ‘null frequency’ that’s locking your speed! You’re essentially running in place.”

Barry watches Iris arrive. She hugs him tight.