Hymntunes IV, Imenetuki, Gospel Chant from the Cook Islands for solo bass flute (1995, revised 1998) available from SheetMusicPlus. 

Hymntunes IV is based on a simple two phrase chant from the Cook Islands. The first phrase appears on page one in the section marked "Slowly with Rubato." Variations on this phrase appear throughout the piece. The second phrase appears only toward the end of the work, on page 4, starting in measure 91. The other material in the piece is based on drumming patterns from various islands in the south Pacific. These drumming patterns are generally started by certain rhythmic signals, much as a band director might start a band by tapping on the music stand or by blowing a whistle. These rhythmic signals are imitated in the work when tempo changes are indicated. This work makes considerable use of extended techniques including: tongue stops—used to imitate the sound of log drums. key clicks—used as a percussive effect. multiphones—to imitate ethnic flutes, particularly nose flutes. repeated patterns overblown—to produce harmonics in a rapid, echoing swirl of sound. The work has been performed many times. While written specifically to take advantage of the harmonics that are so characteristic of the bass flute, Hymntunes IV has also been successfully performed on the alto flute (by Linda Wetherill and Leslie Marrs).

Hymntunes IV appears on the CD: Sound and Repercussion: New Music for Solo Flute, Linda Wetherill, flute; Furious Artisans Records