the igbo people have a musical style into which they incorporate various percussion instruments: the udu, which is essentially designed from a clay jug; an ekwe, which is formed from a hollowed log; and the ogene, a hand bell designed from forged iron. other instruments include opi, a wind instrument similar to the flute, igba, and ichaka. another popular musical form among the igbo is highlife. a widely popular musical genre in west africa, highlife is a fusion of jazz and traditional music. the modern igbo highlife is seen in the works of dr sir warrior, oliver de coque, bright chimezie and chief osita osadebe, who were among the most popular igbo highlife musicians of the 20th century.