Roots of Frances Quinlan

Yusuf Islam, commonly known by his stage names Cat Stevens or Yusuf/Cat Stevens, is a British singer-songwriter and musician. He has sold more than 100 million records and has more than two billion streams. His musical career has explored folk, rock, pop, and, later in his career, Islamic music. Following two decades in which he performed only music which met strict religious standards, he returned to making secular music in 2006. He was inducted into the Rock and Roll Hall of Fame in 2014. He has received two honorary doctorates and awards for promoting peace as well as other humanitarian awards.

Angela Maria "Ani" DiFranco is an American-Canadian singer-songwriter. She has released more than 20 albums. DiFranco's music has been classified as folk rock and alternative rock, although it has additional influences from punk, funk, hip-hop and jazz. She has released all her albums on her own record label, Righteous Babe.

Joanna Newsom is an American singer-songwriter, harpist and actress. After recording and self-releasing two EPs in 2002, Newsom signed to the independent label Drag City. Her debut album, The Milk-Eyed Mender, was released in 2004 to acclaim and garnered Newsom an underground following. She received wider exposure with Ys (2006), which reached number 134 on the Billboard 200 and was nominated for a 2007 Shortlist Music Prize. She continued releasing albums with Have One on Me in 2010 and Divers in 2015.