sentences:  According to Nielsen SoundScan, the disc sold a total of 67,203 copies as of December, 2016.This was Ronstadt's last studio album before her retirement in 2011 and the revelation of her affliction with Parkinson's disease in 2013, which has left her unable to perform or sing.Ronstadt, a soprano, and Savoy, an alto, had previously recorded duets for the Savoy-produced album ""; here, they sing together as The Zozo Sisters on the album, which brings together a mixture of Louisiana Cajun sounds, popular music of the 20th century, and folk/rock classics.