February 1st, 2017, 20:38
Bobchillingworth
Unregistered
Without looking at spoilers-
Conductor for sure.
Square and Flute following, in that order.
For the fourth word I have a slight preference for Staff (as in a conductor's baton), but can also see the cases for Beat (a marching beat), Plane (as seen in a military parade), or Germany (source of military parades).