To prevent a large number of updates when a user is skipping through tracks, an implementation SHOULD wait several seconds before publishing new tune information.
If the length is unknown (e.g., the user is listening to a stream), the <length/> element SHOULD NOT be included.
-A typical interface for user ratings is to show one to five star icons such as ☆☆☆☆☆. If this interface is used, the numbers 2, 4, 6, 8, and 10 should be mapped to one, two, three, four, and five stars respectively, and odd numbers should be mapped to half stars (e.g., the number 9 would be mapped to four-and-a-half stars).
+A typical interface for user ratings is to show one to five star icons such as ★★★★. If this interface is used, the numbers 2, 4, 6, 8, and 10 should be mapped to one, two, three, four, and five stars respectively, and odd numbers should be mapped to half stars (e.g., the number 9 would be mapped to four-and-a-half stars).
The publication of user tune information is not known to introduce any new security considerations above and beyond those defined in XEP-0060: Publish-Subscribe.