Here are some of the most important parameters used throughout the Yahoo! Music API:
response: Your best friend. Use this liberally to return only the data chunks you need. The more data chunks you ask for, the slower and fatter the response. Compare these results:
start/count: Provides pagination-- your next best friend. Only ask for the number of items you need. And start is 1-based, not 0. Example:
ratings: Decorates your results with user ratings. A "rating" attribute will be added to all rate-able elements in the response. Only use when needed as it adds some overhead to the call. Also, BBAuth is required to use this parameter. Example:
format: Controls the output format of a list. Most services accept "xml", "json", and "rss". Default is "xml". Example: