Madagascar Rosewood (Dalbergia barroni)—also known as Voamboana—comes from Madagascar, particularly the northern tip of the island. May be visually identical to Brazilian Rosewood with its deep red-orange coloring and inky black spider lines. Available only in small pieces, backs are often made from four pieces. Fortunately, it is available well-quartered and it is easy to match so that it looks like a two-piece back.
Madagascar Rosewood is considered by many to also sound identical to Brazilian. In any case, most builders agree that it sounds closer to Brazilian rosewood than any other wood. That means rich deep bass and clear bell-like trebles. This may become the new standard in high-end guitars.