The article describes an investigation in depth of the possibilities of using indigenous musical forms of the iKalahan people of the Philippines and even indigenous tunes for an indigenous hymnody. The various instruments and musical patterns are described first, then the forms of various types of songs: Verse forms, metrical patterns, themes, situations in which they are used, etc. The author experimented successfully with the use of such music both for the translation of metrical Psalms and for original hymnology. Previous articles on this topic are: “Developing Hymnology in New Churches,” PA Vol. 9, No. 6 (special issue, Nov.–Dec. 1962); Elaine T. Lewis, James M. Riccitelli, and William A. Smalley, “More About Developing Non-Western Hymnody,” Vol. 11, No. 1 (Jan.–Feb. 1964), pp. 35–46; Vida Chenoweth and Darlene Bee, “On Ethnic Music,” Vol. 15, No. 5 (Sept.–Oct. 1968), pp. 205–212; and Dorothy James, “Toward an Ethnic Hymnody,” Vol. 16, No. 1 (Jan.–Feb. 1969), pp. 34–38.