So cool! Placed on hold with an aviation services company, their hold audio is live air-traffic radio calls. 
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I have had cause to call several landscaping services companies today and many of them use Is Kamakawiwo'ole's "Somewhere over the Rainbow"
"I see trees of green" 
I might be nostalgic but honestly, this might be the best hold music of all so farhttps://twitter.com/starsandrobots/status/836644524881494016 …
