For Mariana44 and any others interested:
I found the track listing for Johnny Mathis's forthcoming 50th Anniversary album on the Barnes and Noble website. The address is
www.bn.com. Once in, select "music" from the menu on the left hand side of the page and then type in 'johnny mathis' in the search field. When you are in the relevant page, click on the blue coloured selection indicating the 50th Anniversary album for details.
As I said earlier, it seems to be a totally unimaginative selection of tracks to cover his 50 years in the businesss, most of them being the usual songs they always release, and they have even included the recording of "Somewhere Over the Rainbow" with Ray Charles, which is already available. Though it pains me to say it, I really don't know they've bothered.