Freeform’s fantasy thriller “Siren” features the music of Phoenix, Arizona Jazz great Nadine Jansen. Heard in Episode: 212 “Serenity” is Nadine’s 1959 recording “I Gotta Believe.” Fervor Records acquired the entire catalog of Nadine’s namesake label Jantone Records. The archives include recordings dating from the 1940s to the 1980s. Catch episode 212 of “Siren” on Hulu, and head to fervor-records.com for your copy of the CD “The Very Best of Nadine Jansen!”