The Real Royal Albert Hall 1966 Concert! Bob Dylan backed by the Band (minus Levon Helm).
There is a famous bootleg of the same name but it was recorded in Manchester. The one where a fan calls Dylan Judas because they don't like the electric Bob.
This was recorded nine days later. It's Dylan and the Band doing new stuff from Highway 61 Revisited and Blonde on Blonde. The crowd is a bit friendlier than Manchester and Dylan does some gentle taunting. If you like Bob this is a must.