With the  combination of the "Dies Irae" chant and a "double-double, toil and trouble" text that your students will certainly recognize, this would make a perfect piece for a fall (or Halloween) concert. Alternatively, there are plenty of "teachable moments" in here to make it a perfectly satisfying festival piece. The optional middle part makes this accessible even to changing voices, but fair warning: the piano part is fast and tricky. Also available SSA.

View sample score, listen to a rendering, and purchase the track-pack below.