it can be personally recorded for later viewing. It is easier to watch one's mallet or stick heights and critique one's performance when not being focusing on playing. Harnesses The original harnesses for the marching glockenspiel and xylophone were made of straps, which sometimes interfered with playing on the high end of the instrument or interfered with four-mallet playing. There were poles on the high and low ends of the keyboards sticking up a few inches, with straps going around the player's neck, making them look similar to a peanut vendor. Eventually, before the use of marching marimbas and vibraphones, a new style of harness was made. The new harness was a vest, similar to what is usually used today for marching percussion. Harnesses for the timpani were originally just slings. Corps usually used 2 snare slings and hook them around the player, and onto his timpani. Some corps rigged wooden blocks between the drum and the player, to help balance issues, as the drums were carried high on the body. Some corps used harnesses for a few years, while some continued using slings. See also Military drum Front ensemble References Drum and bugle corps Percussion ensembles Marching band instruments