bilal kamara: i missed my mom. i miss having dinner with my mom every night. reporter: so bilal is on his way back to sierra leone and an uncertain future. kate: shelled-out buildings, abandoned cars -- this is the image the world now has of bagdad, iraq's ancient capital. and what's the soundtrack to this dystopic panorama? explosions? gunfire, shouting? karim wasfi, the renowned conductor of the iraqi national symphony orchestra, wants to change that. he wants the soundtrack to be music, beautiful classical music ringing out across the streets of bagdad, conquering the city with hope. reporter: a baghdad street vendor peddles a selection of flutes against a backdrop of heavily damaged buildings. the flutes cost the equivalent of two euros and 50 cents. we see billboards touting the various militia. security forces are everywhere. it appears no one is interested in making music. karim wasfi hopes to change all that. he is on a very personal mission. some time ago he started playing his cello in public spaces. a bomb exploded not long ago at -- exploded here r