A Short Essay for the Improvement of Psalmody, or Reflections on How the Psalms of David Should be Translated into Christian Songs, and How Lawful and Necessary it is to Compose Other Hymns According to the Clearer Revelations of the Gospel for Use, by Isaac Watts, is the above-mentioned work, which was first published published in 1720. In this book, Watts explores the question of translating the Psalms of David into Christian songs and expresses his thoughts on the possibility of creating other hymns based on the deeper revelations of the Gospel. The author explains that the achievement of quality in Christian music can open new horizons for the education of spiritual life. Watts emphasizes how the use of new musical forms can help deepen faith and promote spiritual growth. In this work, the author tries to explore the essence of Christian psalmody and praise and offers a fresh perspective on its development in accordance with the spread of Christianity and the growth of the spiritual needs of the adherents of this faith.