Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An Unsuccessful Portrait of the Muse

The Bride of the Wind, while scrupulously researched, fails to bring its subject to life. Alma Mahler must have been possessed of much charisma and fire to attract the geniuses that she did, but Keegan's dry account of Alma's self-absorption and reputed beauty left me wondering what she had missed, since the portrait does not accord with the events of the subject's life. (The movie of the same title, by the way, has the same flaw, though it at least paints an atmospheric picture of turn-of-the-century Viennese society, which the book also fails to do.) The book also bogs down with information about Austrian history and classical music that is far too inside-baseball to be interesting to a general reader.