“Something To Sing About: The Personal Choices of America’s Folk Singers” by Milton Okun (1968). The author asked 76 of the most important mid-60s folk singers for their favorite or most admired folk song of all time. Each artist’s entry includes photos and 1-page bio, with full lyrics and musical notation for each song (piano arrangement and guitar chords). An absorbing approach to the folk revival of the 1960s! $9.00
“Readings in Black American Music”, Compiled and Edited by Eileen Southern, 1971 hardcover. Source essays on the historical and cultural relevance and function of black music in America. Collected works span the time from early colonization through the end of the Civil War. Deeply engaging.