I'm in my mid-50's, not a kid but not quite an oldster either (at least I sure hope not...) So I was a teen in the 70's, and I remember easy listening/beautiful music radio. And it was beautiful, and rich-sounding, but it was also soooo snoozy. Nothing remotely upbeat, and DJS who sounded like wannabee hypnotists ("You are getting sleepy...sleepy...") And I wondered even then why there couldn't be up-tempo easy listening radio, with some kind of "fast-board" DJ-ing. Not bellowers like the teen stations, but energetic. Then el/bm radio just sort of disappeared, and it was years before I thought of it again.
The B/EZ format was a favorite of mine. Running several signals around the area, the thought crossed my mind to put the format on one of our AM properties. Outside of the business case of whether or not it would make sense to do so, one of the challenges you would face would be the material to play.
B/EZ's concept was to orchestrally produce popular music in a subdued manner. In today's world, you would hear Lady Antebellum, One Republic, Taylor Swift and Kelly Clarkson tunes done in orchestral arrangements mixed with current hits and softer hits.
To get the material, Bonneville and the other syndicators in the heyday of Beautiful Music had a lot of recordings contracted of current pop music. Much of the material was recorded in England by John Fox, Frank Chacksfield, Lex De Azevedo, and others. North of the border, the Canadian Talent Library was produced with great custom material by Peter Appleyard, Ben McPeek, Haygood Hardy, and others.
Some of the best commercially recorded material came from Paul Mauriat and Franck Pourcel. It's all good material, although unfortunately "destinated" with respect to the timeframe.
For people looking to acquire this material, much of it is available on iTunes now or through Starborne.
Despite being an older format, there is still are a lot of passionate fans for it. I had a B/EZ web stream up for 10 years and pulled it down a few years back due to cost. As for a viable radio format, the biggest challenge would be to get customers to buy it.