My highly scientific poll on the past tense of "strive" finished today.
One person claimed that "strived" is the way to go, and one rallied round for "strove." The clincher--I asked my grandmother what she would say, and she gave me an odd look and said, "Strived." She should know. So if people want to write things like, "Music of this period strived to be more noble," evidently they are welcome to it. But if you should catch me writing "strove," tread gently because you tread upon my dreams.