Net::Amazon::Validate::ItemSearch::uk::MP3Downloads - valid search indicies for the uk locale and the MP3Downloads SearchIndex.

The default value is Title, unless mode is specified.

The list of available values are:

    Author
    Availability
    BrowseNode
    Count
    DeliveryMethod
    ItemPage
    Keywords
    MaximumPrice
    MerchantId
    MinimumPrice
    ResponseGroup
    ReviewSort
    SearchIndex
    Sort
    TagPage
    TagSort
    TagsPerPage
    Title