信仰孤獨，擁抱寂寞

Kimball gathered art song repertoire together and writes a discussion on the theme of sleep.

Kimball is also the author of another art song literature textbook, Song: A Guide to Art Song Style and Literature, it gives readers an academic credential to prepare their recital repertoire. The author associate sleep with lullaby, night, stars, moon, moonlight, dark, relaxation, dreams and so on, which discover poets develop abundant words for a single theme such as “Sleep”, which can be interesting to have a recital based on these word subjects.