from

http://www.dylanchords.com/

click on "harmonica"

"Bob Dylan and the Harmonica

There are those - especially among "professional" harpers - who don't like the way Dylan plays the harp. A common line of argument is something like "I respect him as a songwriter and a performer, but my 4-year old son plays better harp than him." (this is a genuine quote. If you search this page thoroughly, you'll find a link to some more similar quotes. Read on your own risk!)

Then there are those who go mad about almost anything he plays - be it good or outright bad.

And then there are us middle men, archive crawlers, dust researchers, who admit that Little Walter has a slightly better technique on some minor points, but who still go out and buy a Marine Band and feel satisfied when able to produce some of Dylan's clumsy, unstable, unsofisticated fills, instead of the great, virtuosic work of Sonny Boy Williamson or Charlie McCoy (I always thought it's a pity he ended up playing bass, of all things,on those country records - like Blonde on Blonde- back when)."