If your song is an original lyric/melody, then the vocals will be considered “work for hire”. My name/likeness can not be used in association to the song for the release or any promo that might follow (including social media tagging).
If your song is a cover, then I will require a 20% split of the master.
For either scenario, additional vocal tracks (harmonies, doubles, ad libs) can be purchased “a la carte style” for $25 per stem.