NOTE: this information is out of date and is left here for historical purposes

There is a nice hint discussion on MacOS X Hints that describes the formats and shortcuts for building URLs that link either to songs served from people's shared music or for searches/albums in Apple's service.

Safari, at least, will accept URLs of the form:

daap://server.host.name

or

daap://server.host.ip

for accessing music servers via iTunes sharing mechanism.

If you want to send a pointer to where to buy a record, or browse and artist, etc. the form is:

itms://phobos.apple.com/WebObjects/MZSearch.woa/wa/advancedSearchResults?searchTermHere

Where search term can be any term below in any order:

• songTerm - song title
• artistTerm - artist name
• albumTerm - album name
• composerTerm - composer name

Example:

itms://phobos.apple.com/WebObjects/MZSearch.woa/wa/advancedSearchResults?artistTerm=Bob Dylan&albumTerm=Blood On The Tracks

Or, a search of all fields (like typing in the search box at the top of iTunes) uses this form:

itms://phobos.apple.com/WebObjects/MZSearch.woa/wa/search?term=Muddy Waters