Don't listen to many of the guys you mentioned for their mainstream music but I have Andy Williams, Dean Martin, Bing Crosby, and the Andrews Sisters Christmas music. Two singers I do love are Nancy Wilson (the jazz singer) and Doris Day. I inherited one of Nancy's LP's from my mom "Just For Now." People from that era could sing (on key). None of that "let the machine adjust my off-key notes" for any of them.
For older guys
On a recent Good Will LP foraging trip, I came across a Perry Como album new still in wrap .
Now, I never cared about Perry as a kid growing up but I had had a very beloved aunt
who adored him, and in her honor bought the album .
Spun it today and ,through the tears for my aunt, I saw why she adored him.
What I took for a sap when I was a kid had changed into a master of what
he did , perfect phrasing and timing , he just made his art, and art it was, seem easy and I was the sap.
Now, I never cared about Perry as a kid growing up but I had had a very beloved aunt
who adored him, and in her honor bought the album .
Spun it today and ,through the tears for my aunt, I saw why she adored him.
What I took for a sap when I was a kid had changed into a master of what
he did , perfect phrasing and timing , he just made his art, and art it was, seem easy and I was the sap.