Plain Yellow Hemp - Bagpipe Hemp is a staple for every piper. Hemp is used on your bagpipes, and most practice chanters. It seems like you are always having to adjust a part of your pipes, and a roll of hemp is a must in every pipers case. Having your pipes hemped-up properly is one of the most important maintenance aspects on your bagpipe. It will help with proper tuning, and air efficiency. Plain Yellow hemp is the most popular and most diverse for using on your bagpipe.