The project is a cross-cultural collaboration of epic proportions. Its big goal? The sustainability of one of the world’s longest rivers. As part of the undertaking, 35 musicians from the 11 countries bordering the Nile River have joined together to compose and perform original songs that celebrate their rich collective history. Hear lyrics in more than 10 languages and countless intriguing instruments, from harps to lyres. Fittingly, the group is on tour across North Carolina thanks to a collaborative effort between six state universities, including Western Carolina, where you can catch them on March 13. » Schaefer Center for the Performing Arts, Appalachian State University, 733 Rivers St.; Tuesday, 7 p.m.; $25, $10 students; (800) 841-2787; www.theschaefercenter.org