Rig Veda

The essence of very high positive sound
for example:
sound of mantras

Yajur Veda

Consists of deals with homas, yagas, family rituals

Sama Veda

Almost totally takes sound vibration in to flow as we call music - and all kinds of classical arts

Atharva Veda

Gives importance to sacrifice as a remedy to escape from deeds done by cruel opponents (material aspect)