Answer:
The speaker commands the instruments to play loudly. He imagines the sound bursting through a "solemn church", scattering the congregation, into the school where the scholar is studying. He imagines the sound disturbing a bride and groom. He commands the instruments to play so loudly that it changes that they disrupt everyone's life.
The author intended to invoke the enviroment of war without speaking about soldiers. He uses onomatopeia and enphasis in certain words so that the speaker, whilst reading the poem, could also imagine the drums playing.
That which is "solemn", "quiet", and "peaceful" is meant to be disturbed, to be changed by the loud instruments playing.
