The rawap is a fretless plucked long-necked string instrument.
Origin: Xinjiang, China, in the 14th century
Original use: folk songs/ accompaniment to dances
Material:
Body constructed with mulberry wood, with the opening across the top covered by a stretched dry snakeskin. It is strung with between three and nine strings. On the extension above the wooden bowl, decorated goat horns are mounted, curving toward the bowl.
Playing style:
Held horizontally, at about shoulder level, and plucked with a plectrum in the right hand while strings are pressed with the left.
Related instruments:
Lute (https://musicbrainz.org/instrument/38237fcc-b833-4cd6-8dc1-e5fe2f308a2b)
Yueqin (https://musicbrainz.org/instrument/d16da325-4ae5-45fd-a0ec-338766795391)
Sanxian (https://musicbrainz.org/instrument/ce8d4fc7-08cd-4d13-a84f-297f799e672f)
Rubab (https://musicbrainz.org/instrument/7e42e637-c7b4-422c-ad56-f7fafbd961bb)
Links:
Wikipedia: https://en.wikipedia.org/wiki/Rawap
https://interactchina.wordpress.com/2011/04/08/xinjiang-uyghur-musical-instrument-rawap/
https://www.farwestchina.com/blog/uyghur-man-plays-the-rawap-pic-of-the-week/
(pictures and audio clips)
http://saisaibatake.ame-zaiku.com/musical/instruments_rawap.html
https://digitalstamp.suppa.jp/musical_instruments_r/rawap.html