The purpose of the document is to present Ned Rorem’s Sun (1966): Eight Poems in One Movement for Solo Voice and Orchestra. the eight songs are “To the Sun,” “Sun of the Sleepless,” “Dawn,” “Day,” “Catafalque,” “Full Many a Glorious Morning,” “Sundown Lights,” and “From What Can I Tell My Bones?” the document is divided into four main chapters: 1) Background; 2) Poet and Poem Background; 3) Musical Analysis; 4) Performance Guide. Chapter 1 contains biographical information on Ned Rorem, and basic information of the work, Sun. Here, a relationship between the eight songs is presented. Chapter 2 discusses biography of poet and background of the poem. the poetry is examined to determine the theme and to identify imagery, and metaphor. Chapter 3 offers detailed musical analysis for each of the eight songs and interludes. Chapter 4 provides performance guide which offers assistance in forming personal interpretation and brief specifies to singers who wish to perform this work. Appendix a includes tonality, difficulty, tempo, form, theme, range, and orchestration of each song and interlude. This study serves as a reference guide for performers of Sun.