We propose B Maude, a prototype executable environment for the Abstract Machine Notation implemented in the Maude language. B Maude is formally defined and results from the implementation of the semantics of AMN as denotations in the $π$ Framework, a realization of Mosses' Component-based Semantics and Plotkin's Interpreting Automata. B Maude endows the B method with execution by rewriting, symbolic search with narrowing and Linear Temporal Logic model checking of AMN descriptions.