So, unless Beyoncé knows how to compose a song (which I doubt since I never saw her even playing an instrument), her vocal runs/ harmonies are part of the production.
riffs & vocal arrangement affect the melody, sir, so it isn't production, it's songwriting
Sia is not even that good of a songwriter. Too many of her melodies repeat. Rihsus has made her a hot commodity despite that though. She has worked with practically all of the popgirls even J. Lo.
Sia is not even that good of a songwriter. Too many of her melodies repeat. Rihsus has made her a hot commodity despite that though. She has worked with practically all of the popgirls even J. Lo.