The bili (ancient Guanzi)

Its name is a transliteration of Kuchean; its aliases are its timbre — a pipe of sorrow from the Silk Road

Related

GuanziQiang fluteSuonaGuqin scores and the jianzipuTimbre

⭐⭐ The main line: the name is a transliteration, the aliases are the timbre

The bili has a string of names: bili, bìlì, bēilì, jiāguǎn, lúguǎn, tóuguǎn — and the most important fact hides in the sources: "its name is a transliteration of the Kuchean Pi-Li."

⭐⭐ This instrument's very name is not Chinese — it is a foreign pronunciation written down in Chinese characters (compare the site's name-vs-reality lineage: the saer's mismatch was "different transliterations" — the bili is more radical: the name itself is a transliteration, and every Chinese spelling is a different hearing of the same foreign word). ⭐⭐ And the alias string is even better — "bēilì" (sorrowful pipe) is not a metaphor, it is a spec sheet: the instrument's most common Chinese alias simply is its timbre (⭐ a new extreme of alias-as-description on this site: the name admits its own sound).

⭐⭐ 383 CE: one instrument's household registration moved

The earliest document is the Southern Dynasties' He Chengtian's Zuǎnwen: "Bili is the name of a Qiang-Hu instrument." And the Tang's Duan Anjie in Yuefu Zalu said it precisely: "The bili was originally the music of the state of Kuqa; also called bēilì, akin to the jia."

⭐ In 383, the Former Qin general Lü Guang campaigned in the Western Regions and brought back a Kuqa ensemble — "the bili thus entered the Central Plains." ⭐⭐ The Silk Road was not only where caravans walked; it was a touring route for bands (the instance "Song of the Northern Frontier" — a whole band travelled that road, and the bili was the loudest and saddest of them).

⭐⭐ Form evolution: from a horn to a wooden pipe

The Bezeklik Thousand Buddha Caves' murals record its childhood: "its shape was curved, thin below and thick above — visible proof that the earliest bili was made of sheep or ox horn; after entering the Central Plains it switched to bamboo, the body straightening from bent" (straight forms appear in the Northern Wei Yungang murals).

⭐ Horn → bamboo → wood — it changed bodies three times, but the mouthpiece stayed reed (today's form: "a mostly wooden body with eight holes, a reed whistle inserted at the top"). ⭐⭐ A horn borrowed from an animal's body finally became an eight-hole wooden pipe — the materials were only the shell; the reed decided it would always be a reed pipe (compare sheng-harmony's free reeds — two reed instruments from the Silk Road: one went to the conservatory to lead, one became a harmony engine).

⭐⭐ Tóuguǎn: first of all instruments in the conservatory

A main instrument in the Tang court's ten musical divisions; in the Sui-Tang court's Hu music (Kucha music foremost, with bili in Tianzhu, Shule, Anguo and Gaochang music) — by the Tang-Song conservatory it became "the first of all instruments": often leading the ensemble, hence the name tóuguǎn (head pipe).

⭐⭐ A foreign instrument promoted to lead the court ensemble — the Silk Road's highest appointment (compare the suona: from the same road, but it went to village funerals; the bili went to the conservatory to lead — one Silk Road, two destinies). ⭐ In the Song it was the chief melodic accompaniment, and guanpu notation (marking pitches and fingerings) became an important way for musicians to record tunes — ⭐⭐ compare guqin-notation's tablature: two notation systems for the same purpose — recording an instrument in its own terms (a score is a letter an instrument writes to its own users).

⭐⭐ Three poetic perfections: a literary history of one instrument

「South of the mountains, cut the bamboo for a bili; this music first came from Kuqa.」 — Li Qi, Song on Hearing An Wanshan Play the Bili 「Where is that reed pipe blowing? All night the garrison turns homeward.」 — Li Yi 「Low notes drop like stones, heavy; high notes rise like drifting cloud.」「What differs between Hu and Yue? Hearing this, we mourn as one.」 — Bai Juyi

⭐⭐ One instrument's timbre certified by poets of three eras in three ways: Li Qi records its origin (Kuqa), Li Yi records its function (a whole camp turns homeward in one night — the switch of homesickness), Bai Juyi records its physics (low heavy as falling stone, high as drifting cloud — two textures at two ends of its compass). ⭐⭐ And Bai Juyi's last line is the footnote of all music history: "What differs between Hu and Yue? Hearing this, we mourn as one" — the barbarian's instrument and the southerner's ear grieve in the same grief.

⭐⭐ Survivors: the balaman and the double pipe

Xinjiang's Uyghur balaman (Uyghur "pipi" = reed) "still preserves the ancient Kuqa form of the bili, made of reed" — in the Twelve Muqam it carries the unmeasured prelude of the Qiongrakman (grand suite). ⭐⭐ The Central Plains rebuilt it as a wooden pipe for the conservatory; the Western Regions kept it in a reed whistle — one instrument, two conservatisms on either bank.

⭐ Modern Chinese orchestras have alto, bass and keyed pipes (range two octaves plus a sixth; keyed models play all twelve semitones); the double pipe binds two pipes side by side, two reeds in the mouth, both holes fingered at once to sound dyads. ⭐⭐ It spread east to Korea and Japan; Japan's Shōsō-in keeps no specimen — only a record in the乐具欠失物注文 of its loss — in another country's archive, the instrument survives only as a "missing item record."

HS class

The bili is the ancient form of the guanzi: today's wooden pipe has eight finger holes and a reed whistle, its reformed range extends two octaves plus a sixth, and keyed models play all twelve semitones; alto, bass and keyed pipes divide labour in the Chinese orchestra — hence this entry's range C1–C6 (common playing area C2–C5). Its physics decides its timbre: a double reed plus breath support lets it 「produce a round, unbroken, rising-and-falling sustained tone」 — brilliant clarity and mournful desolation, used by the ancients to voice grief; Bai Juyi recorded its physics — 「low notes drop like stones, heavy; high notes rise like drifting cloud.」 The double pipe binds two pipes side by side, two reeds in the mouth, both holes fingered at once to sound dyads — one instrument split into two parts (compare the yodel-overtone entry's one throat, two voices: the bili does the same with two pipes).

Sources

• ⭐⭐ 筚篥史（百度百科 + 央视《乐动中国》+ 临夏网）——名字：又称管子；「其名称系古龟兹语 Pi-Li 的译音」——别名群：觱篥 · 悲篥 · 笳管 · 芦管 · 头管（⭐⭐ 全站「名与实」谱系的音译层：名字不是描述，是音译——对照 saer 条的名实错位）。出身：古代龟兹（今新疆库车）；383 年前秦吕光出征西域带回龟兹乐队，「筚篥这件乐器就此传入中原」；最早文献南朝何承天《纂文》「必栗者，羌胡乐器名也」；唐段安节《乐府杂录》「筚篥者，本龟兹国乐也。亦名悲篥，有类于茄」。形制演化：伯孜克里克千佛洞壁画「其形弯曲，下细上粗，可见最初的筚篥是由羊角或牛角制作而成，传入中原后，才改用竹制，体身也由弯变直」（云冈石窟北魏壁画可见直形）；今制「管身多为木制，上面开有八孔，管口插一苇制的哨子而发音」；改革后音域两个八度又六个音，加键管可奏十二半音；双管并扎双簧哨发双音。地位：唐代宫廷十部乐主要乐器；隋唐宴享胡乐（龟兹乐为主，天竺 · 疏勒 · 安国 · 高昌乐中都有筚篥）；唐宋教坊「众器之首」、领奏故称「头管」；宋代主要旋律伴奏乐器，管色谱成为乐工记录曲调的重要方式。名手：安万善 · 尉迟青 · 董庭兰 · 李龟年 · 敬纳 · 张野狐 · 王麻奴 · 薛阳陶（《全唐诗》中至少七位诗人感叹薛阳陶技巧）；东传朝鲜、日本（正仓院无实物，仅《乐具欠失物注文》留遗失记载）。音色：「最悲凉的乐器」故称悲管/悲篥；「或高亢清脆，或哀婉悲凉」；「通过气息支撑，可以表现出圆润不断，委婉起伏的持续音」。诗歌三绝：李颀《听安万善吹筚篥歌》「南山截竹为筚篥，此乐本自龟兹出」· 李益「不知何处吹芦管，一夜征人尽望乡」· 白居易「下声乍坠石沉重，高声忽举云飘萧」「何言胡越异，闻此一同悲」。遗制：新疆维吾尔巴拉曼（维语「皮皮」=簧片）保持古龟兹形制苇制，《十二木卡姆》琼拉克曼散序；现代民族乐队中音管 · 低音管 · 加键管
• ⭐⭐ 对照线（guanzi 条已写今制管子）——筚篥是管子的「前世」：同一条线，古形制（角→竹→木）与丝路传播在本条；guanzi 条讲现代管子与地方戏曲。⭐ 羌笛也出自「羌胡」（何承天「必栗者，羌胡乐器名也」——筚篥与羌笛同出一个词根，却走向两极：羌笛留在边塞当乡愁，筚篥进教坊当头管。⭐ 唢呐（另一件丝路来）走民间送葬，筚篥进宫廷领奏——同一条丝路，两种命运
• ⭐ 制作注记 —— 条目写作日期 2026-10-21；inst 站八音吹管类条目；SVG ×2 中英各一；range 两版逐字相同；实例取 chinafolk C3 参照

Used for fact-checking only; all prose is original.