Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Windpony Key of High C, 6-Hole Cedar Native American Style Flute, Book & 3 CDs Starter Set (Retail Value $129.95) - Books and CDs
Product description: Includes: -Key of High C 6-hole Cedar Flute -6 hole instruction book -Teaching CD -Warriors Night Call CD -Wind Pony CD Windpony flutes are crafted to the specifications of Robert Windpony and are available in many woods. Dont be fooled by the low prices. Windpony flutes are individually concert-tuned and crafted to Windponys exact specifications. Your Windpony flute will give you a lifetime of pleasure.
Product feature: Key of High C 6-hole Cedar Flute, concert-tuned., Flute Instruction Book and 3 CDs.
Product brand: Windpony
Target attributes: Concert Type
Answer: attribute: concert type
value: None
source: None