What is some intermediate or advanced macroeconomics textbook use general approach and focus on general topics?
Have you had a look at Dornbusch and Fischer's Macroeconomics? I would say that is a great book for both Introductory and Intermediate Macroeconomics. It emphasises on basic concepts (I used a really old edition but it still worked for me!) does a review after each section, the formulas are crystal-clear (I may be speaking only of myself though and I apologize in advance), brings up mathematical verification only occasionally, and there is nothing that the diagrams do not explain.

In addition, I used Greg Mankiw's Macroeconomics (still do) to run through topics- it covers most concepts and does not intimidate the reader at any point, but it is not so heavy on the math. 

I do not have much idea as to what topics are covered under advanced Macroeconomics, but do take a look at these.