Guys like ol’ Bob aren’t known for their singing... they are known for their voice though and how they use it to convey their stories. Hendrix, Tom Waits and Tom Petty, to an extent, fall into the same category.
LOL0LOL.
Btw, I’ve been to probably a dozen Dylan concerts. Some, in small venues, were sublime. Most were godawful.
CDs are better. The sound engineers can dial down the nasal wheeze.