Her musical activities as composer, and pianist are closely interwoven. Her compositions range in size from 8-piece chamber ensemble to digitally realized fixed electronics; utilize timbres from voice to drum set; and employ styles from 12-tone technique to structured improvisation, microtonality to field recordings. Ms. Mercer holds artist residencies at Villa Montalvo Center for the Arts, Ragdale, Centrum, Kimmel Harding Nelson Center for the Arts, and Hypatia-in-the-Woods.