Dear Oregon,
Seriously? Andreas Vollenweider? Never heard of that dude.
On "Only the Lonely", Sinatra takes about 12 ballads and hits every one of them out of the park. It's an unbelievable display of talent and sensitivity to lyrics. I bought that album when it first came out in 1958, as a kid too young to drive, and I have lived with it all my life since. However, only as an older adult did I take up the art of jazz singing for myself, as an avocation, and through my own experiences as a singer, I appreciate Frank's work on that album, and many others of course, all the more.
Dear Gvasale, Frank recorded "Lush Life"? I am not aware of that, nor have I ever heard of the album "Sentimental Reasons", which may be why. But legend has it that Frank rejected the idea of singing Lush Life after hearing it played. Supposedly he thought it was too hard and said so in no uncertain terms. The quintessential version of Lush Life is of course Johnny Hartman's, accompanied by Coltrane. But I will have to hunt down "Sentimental Reasons". Other than "Only the Lonely", another other great Sinatra recording with emphasis on ballads is "Wee Small Hours", made in 1954 or 55 I think.