Selected Works, Chicago?

There used to be an amazing used bookstore, on Broadway, in Chicago, right near the Salavation Army seminary, IIRC.
They had an extraordinary assortment of used MUSIC, opera scores, pop sheet music from the early 2oth c., organ music, newly published oddities from obscure publishers of still more obscure composers, choral octavos. The place was filthy and had this enormous cat that would come and sit on any stack through which you were trying to sort and look at you and kind of dare you to do sumpin' about it....
Well, I didn't get to it as often as I would have wished, maybe three times a year.
And now it's gone.
Anyone know it?
Anyone know what happened to the stock?
I loved them!