Larry maintains the web site Bob Dylan: Tangled Up in Jews, here
 as well as a weblog, YudelLine: One Jew's News and Views. here
He insists that the song was entirely fictional when it was composed in the mid-1980s.

based on Bob Dylan's 'Tangled up in Blue'

She took the cholent off the blech
And offered me a bowl
Yeshiva boys, she said and laughed
You think God wants self-control
Then she opened up a book of poems
And handed it to me
Written by a Spanish rabbi
Of the fourteenth century
And every one of those words was lewd
They burnt me like a fire
Till I saw my rebbe's face
And felt my desire
Jump the track
Tangled Up in Black

We lived in sin in the Upper West Side
Davened at Lincoln Square
I remember how Riskin smiled with pride
Whe he saw she covered her hair
Then we started talking of halachic change
And Agudah taped our lunch
I knew I had to be out of range
Before the right-wing crunch
We kissed goodbye at JFK
She whispered it's been real… fun
Was that teshuva in my heart
Or just the feel of the gun
At my back
Tangled Up in Black

So now I'm on my own again
Waiting for God's command
Is it off in India
Or with my friends in the Promised Land
Some raise baby physicians
Some search for the ten lost tribes
Don't know if they'd eat in my kitchen
Don't know if I envy their lives
Me, I can't stick around
I'm too tired to argue the point
All I want to do is get home
Amd maybe smoke a joint
Or do some crack
Tangled Up in Black