A love song in a time of war is heard inside a guitar shop in Goma, where students practice their chord progressions.Meanwhile outside, the military battles a tenacious group of rebel soldiers.Shop owner Emmanuel Birubi said Congolese people have a natural gift for guitar. Sadly, though, in the midst of conflict, he said nobody has the money to spend on music.After nearly two weeks of fierce fighting outside the city, Birubi hopes the military will finish off the M23 rebels once and for all.In the last two weeks, Congolese armed forces, backed by United Nations peacekeepers, have pushed the rebels back from within striking distance of Goma.The rebels had briefly seized control of the city in November, and until now, had held positions just 10 kilometers from the population.The ongoing conflict has taken its greatest toll on civilians. Thousands of people have fled to camps like this since the rebellion began last year.