Alphonso Panebianco first participated in Philadelphia area drum and bugle corps activity in the 1940s. He was an outstanding baritone player with the junior corps of his choice, the Liberty Bell Cadets. He then took his skills to the Reilly Raiders, where he spent the next 10 years competing during the 1950s, the period for which the Reilly Raiders were chosen Corps of the Decade by the World Drum Corps Hall of Fame. He was also drill instructor of Liberty Bell, the Bracken Cadets and several other corps, whose marching and manoeuvring (M&M) scores were always among the top units. He was a strict disciplinarian, although very fair, well liked and respected by all his students and peers.