Delve into the world of balanced binary search trees, specifically AVL trees, and learn how to implement them using Python. Understand the fundamental differences between binary search trees and AVL trees, as well as their benefits in terms of search, insertion, and deletion operations. Examine the Node and Tree classes, the build_tree() method, and the insert() and delete() methods in detail. Explore the program implementation, testing process, and performance analysis of AVL trees in comparison to traditional binary search trees. Discover the applications of AVL trees in various data manipulation tasks and real-world scenarios.