Another Beat: Senjou no Otogatari

is the first volume of the Another Beat light novel series, written by Natsuki Sahara and Illustrated by Osamu Otani. It was released under the Dengeki Bunko Imprint in May 2014.

Synopsis
"Melody"-. It is a special existence that can naturally engrave a special pattern called a melody organ on the body and produce "music" from that organ. Fifteen years after the end of the war, in the kingdom where the Knights were disbanded due to an unequal treaty, the symbol of power that the aristocrats wanted to see was to have an "orchestra". Amber, a student of Ochime, who has an extraordinary talent but cannot manipulate sounds well, and Jess, a famous composer for aristocrats. The fate of the two who met at the music festival is eventually caught up in a new war in which the great powers compete.

(source: Bookwalker JP - Translated)