Pakistan has a unique musical culture influenced by Central Asia, South Asia, Persia, Turkey, and the Arab world. Vocal styles include ghazal, a poetic form expressing love and loss that can be sung by both men and women, and qawwali, the devotional music of the Sufi order typically performed at shrines. Instrumental music is strengthened by instruments from Punjab like dhol drums in bhangra. Significant instruments include tabla, dholak, harmonium, and rubab.