def changeMetaData(md) =
    newArtist = md["artist"]
    newTitle = md["title"]

    if newArtist = "ADWTAG_61000_START=0" then (
        newArtist := "RDL_60_artist";
        newTitle := "RDL_60_title"
    )

    [
        ("artist", newArtist),
        ("title", newTitle)
    ]
end