Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12]

NMusicBrainz5
CCAlias
CCAnnotation
CCArtist
CCArtistCredit
CCAttribute
CCCDStub
CCCollection
CCDisc
CCEntity
CCFreeDBDisc
CCExceptionBase
CCConnectionError	Exception thrown when an error occurs connecting to web service
CCTimeoutError	Exception thrown when a connection to the web service times out
CCAuthenticationError	Exception thrown when an authentication error occurs
CCFetchError	Exception thrown when an error occurs fetching data
CCRequestError	Exception thrown when an invalid request is made
CCResourceNotFoundError	Exception thrown when the requested resource is not found
CCHTTPFetch	Object for make HTTP requests
CCIPI
CCISRC
CCISWC
CCISWCList
CCLabel
CCLabelInfo
CCLifespan
CCList
CCListImpl
CCMedium
CCMediumList
CCMessage
CCMetadata
CCNameCredit
CCNonMBTrack
CCPUID
CCQuery	Main object for generating queries to MusicBrainz
CCRating
CCRecording
CCRelation
CCRelationList
CCRelationListList
CCRelease
CCReleaseGroup
CCSecondaryType
CCSecondaryTypeList
CCTag
CCTextRepresentation
CCTrack
CCUserRating
CCUserTag
CCWork