After completing a B. Ed. At the University of Toronto Muckle began her professional life in Newfoundland at St. Francis of Assisi School in Outer Cove, which like many maritime elementary schools at the time had a thriving ukulele program. It was for her combined ukulele and recorder classes that she began arranging ensemble music. This became a life-long interest, thus far culminating with ”Harp and Soul – A Harp Ensemble Tutor”.

Another passion, harpsichord studies, eventually led to harp study with Carla Furlong, and later, Katherine Ely and Sarah Davidson.

Her latest effort, Harp and Soul, is a definitive and distinctly harpistic approach to ensemble playing for teachers, students and performers. These ensemble arrangements were written over a period of 25 years for harp students who were studying with Muckle in both private lessons and group classes. The tutorial/book combination is 158 pages and along with scholarly text, also contains 8 Duets, 1 Trio, 3 Quartets, 1 Sextet, 1 Voice/Harp Duet, and 1 Flute/Harp/Piano Trio.  Harp and Soul.