We were watching a Olivia Newton John video on Chromecast (A Little More Love)......YES, she wrote it for me!!! Seriously...In the video, it shows her singing in a Mixing Studio. It made me think.....When a Performer / Band is doing an album, who has the FINAL say as to what is put on the album?? It IS the Singer's album but I ASSUME the Record Company hires the Studio Engineers / Producers etc?? Is it a mutual agreement?