The sound of music fills the halls at a school in Yemens Taiz, where little Nazira al-Jaafari sits at a keyboard as a teacher takes her through the notes. "I love music," said Jaafari, a pupil at the Al-Nawras school where tutors are trying to help students temporarily forget the ongoing war, said an AFP report Sunday. "Whenever I feel sad or uncomfortable, I play music." She has built up an eclectic repertoire, including happy birthday and cult songs by Arab icons Fairuz and Umm Kalthoum. "I just hope that Yemen will win this war," she said before exhaling deeply, then smiling and adding: "And that we can live a new life." Taiz, a city in the southwestern Yemeni highlands, was once known for its coffee beans, grown at high elevation and exported through the famed port of Mokha. Today, the city is home to some of the most intense fighting in a war between the legitimate government forces and Iran-backed Houthi militias. The United Nations has urged both parties to open humanitarian corridors to besieged Taiz, where state troops are embedded inside city limits. The walls of the three-storey Al-Nawras school are pockmarked with bullet holes, but educators decided to expand the music program, making it part of the core curriculum alongside maths and Arabic, with the hope that it would restore joy to their students days. "The psychological state of the students was very difficult when we reopened here, after all the shelling and bombing and fighting," said principal Shehabeddine al-Sharabi according to AFP. The head of a university in neighboring Mokha recommended music, loaning instruments to Al-Nawras free of charge. "Music is not an extra-curricular activity here. We can see how it impacts our students, how they are more responsive through music. It yields purely positive revenue," Sharabi said. While the lessons are not part of a formal mental health program, music therapy has been used around the world to support those who have experienced trauma. And in the humble classrooms of Al-Nawras, dozens of boys and girls find daily, albeit temporary, reprieve from atrocities in a country the UN says is home to the worlds worst humanitarian crisis. Smiling and tapping on their desks, a class of bright-eyed students sing, in English, "My face, my face, this is my nose". In a class later in the day, slightly older children sing "Education is a weapon". But around two million Yemeni children are missing out on school, with half a million dropping out since 2015, according to UN figures published last March. In Taiz, teacher Abir al-Sharabi takes the time to help students -- like Jaafari -- learn to play the tunes themselves. "Theres a sense that students feel more comfortable here than in their other classes," Sharabi told AFP. "Their energy in this class is different. "And some students even have experience in singing! All their voices are beautiful. Singing helps the psyche," she told AFP. "War is the cause of so much pain, and sometimes its easier to express that through song."