Nick Kimbrell compiles it:

Many of the most inspiring songs are far from new. The Egyptian national anthem, "Biladi, Biladi, Biladi," composed by Sayed Darwish after the First World Waranother revolutionary period in Egypt’s historyhas taken on an entirely new meaning. As have the Tunisian national anthem, "Humat al-Hima" (penned in part by Abdul-Qasim Al Shabi, whose poem “To the tyrants of the world” was recited at protests) and the nationalistic ballads of Egyptian icon and enchantress Oum Kalthoum. But a number of new songs have emerged during the uprisings, often written by those participating. Some are touching, some are tinged with menace, others are undeniably hilarious.

(Video: Egyptian musicians Amir Eid and Hany Adel’s compelling gentle rock song “Sout al-Horeya,” or “Voice of Freedom”)