Men's voices tend to deepen over time. Almost thirty years later, I remember the simply awful sound of the Beach Boys (upper 30s? early 40s?) trying to sing in

Men's voices tend to deepen over time. Almost thirty years later, I remember the simply awful sound of the Beach Boys (upper 30s? early 40s?) trying to sing in the keys they used at 20. Could the middle-aged BBs have thrashed the twenty-something BBs? (No, I didn't pay for a concert ticket--they were on the radio from the Mall on 4th of July.)