Music in the Shop..... Must Have???

[Indycars]

How many of you guys/girls have music in the shop? Is it a must have? Choose all the answers that apply to you.

I've had Pandora to stream music in the shop for many years. I would say it's a must have for me!

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[RPM]

I subscribe to Youtube. I can pick any music I want make a play list and can play it on the shop computer or my phone in the truck. No commercials, no interruptions at all.