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Crypton ultimately holds the rights for use of Miku's image so you have to obtain permission for any commercial use. Songs from piapro are only for non-commercial use, so any song from any producer also needs to have permission.You would need Cryptons permission in order to use the image of Miku Hatsune or any song that is copy righted under KarenT studios for anything unless you are making an original song with a legally purchased version of vocaloid2.