Drum Corps Rehearsal [HD] Field Marshal Drum Corps – Friday MSR Practice – Worlds 2019 1 min read D/S Keith Orr and his corps give a go at their full MSR on the Friday, about 1 hour before their performance. VIEW VIDEO SOURCE Tags: drum corps practice Field Marshal Field marshal drum corps field marshal montgomery field marshal msr field marshal pipe band fmm keith orr msr worlds 2019 Continue Reading Previous Spartan Drumline – The Series 2019Next Blue Devils 2019 Semis Day rehearsal run