The Iron Horse, written by sergeant major from the U.S. Army "The Old Guard" fife and drum corps John Mark Reilly combines a large vocabulary of rudimental drumming from pipe band traditions while maintaining a classic, traditional form. It features standard rudiments like the 7-stroke roll, flam-taps, and the flamacue, as well as more modern rudiments like cheeses, hand-to-hand flams, and patafla-flas. In addition to standard rhythms like 8th, 16th, and 32nd notes, Reilly also experiments with odd rhythms like 7-lets and triplets that start on the offbeat, making this a challenging and engaging solo for even the most experienced rudimental drummers.