Sumatra's heavier Islamic influence is reflected in their musical instruments: a primitive type of oboe, serunai, is almost identical to the Persian original, the surnai. A type of drum, rebana (like a tamborine) found here is also popular in other Islamic areas of the world. Each region of Sumatra has its own choreography and dance forms, performing primarily dances of the feet. Sumatran dancers are known for their gays (grace), very smooth, soft, willowy movements. Candledances (tari li/in or tari piring) are danced all over the island. Girls with tassled caps carry lighted candles affixed to saucers. As the dancer dips and rises, their open palms describe in space semi-circles and figure eights. Music is accented by the clicks of rings against the bottom edge of the plates which are turned over and under very quickly, though the flame never quite goes out. When tari /i/in is over, the girl blows the candle out and silently leaves. In the Handkerchief Dance, men and women hold one end of a large white square of cloth. They do a kind of maypole dance, winding in and out and turning around, tying the handkerchiefs in a series of knots. At the conclusion, they can untangle it immediately and faultlessly. Sometimes they let it drop on the floor and pick it up with their teeth. They say there's a different dance for every one of Sumatra's 100 districts and as many dancers as it has single girls. When a woman dances at her wedding ceremony it's for the last time.