Level 1 Mixed Teacher-Janice Killian Michael O’Hern and Linda Rann. The sister series designed to be used alongside the Essential Musicianship tutor books for choirs these volumes contain a wide variety of songs from different historical periods other countries and cultures English and foreign-language texts levels and styles from masterworks folksongs and spirituals a cappella and accompanied pieces sacred and secular works and some pop-style selections. Each song is treated as an independent unit of study with background information suggested lesson plans warm-ups and performance tips.