The siku
An Andean panpipe of two interlocking rows, traditionally one row per player
Related
The main line: one scale, two rows
The siku (zampoña) splits its pipes into two rows. Neither is a full scale; a melody must alternate between them. Traditionally two players take one row each, ira and arca. Its first fact is division of labour, not timbre. Generic form: pan flute; this page is the Andean pairing.
Form: ira and arca
- Two rows: often six ira and seven arca pipes; lengths interlock into one scale.
- Material: bamboo, reed or cane bound into a raft.
- Holding: one row in both hands; the player moves the instrument, not fingers.
- Ensemble: sikuri, often with drums.
Sound: the seam between notes
The siku has the dark, hollow, airy sound of closed tubes; the Andean point is the seam between notes. Ira sounds a note, arca takes the next, and the two hand over on each other's breath. Hence circular breathing: long lines need unbroken air, and alternation cuts breath in two.
Quechua, Aymara and the highlands
The siku is played in the highlands of Peru, Bolivia, northern Chile, Ecuador and Argentina, among Quechua and Aymara communities. Origin stories attribute them to shepherds or spirits — legend; archaeological panpipes predate the Inca. Two players take one row each, but divided ensemble remains the core.
Against the nai and the Chinese paixiao
- Romanian nai: one row, many pipes, often solo; the siku is two rows, divided by role, ensemble first.
- Chinese paixiao: one row, one note per pipe, one player; the siku splits the idea into two rows and two people.
- pan-flute page: generic form and acoustics; this page covers ira/arca and sikuri.
Common misconceptions
- "The siku is just a pan flute." A generic pan flute is one row for one player; the siku splits the scale into two, traditionally one each.
HS class
| Item | Content |
|---|---|
| HS class | Aerophone · edge-tone · multiple closed tubes |
| Sub-type | two rows · interlocking ira/arca · traditionally one row per player · reedless, keyless |
| Family | World · South America (Andes, Quechua/Aymara) |
| Key features | divided ensemble · interlocked scale · closed-tube colour |
| Compass | see the range fence (schematic) |
A common 13-pipe siku ch'alla (ira 6 + arca 7) combines into a D4–B5 diatonic scale, with E4–A5 in working use. Other sizes and tunings move the whole band. Sounding pitch.
Three things to take away
1. Two rows are not decoration: neither row is a scale; together they make one. 2. Two people, one instrument: ira and arca turn the melody into a relay. 3. Ensemble first: sikuri is collective thickness, not solo display.
Listen in the library
All tracks from midicn-lib — inline badge is the license tier (C1 commercial / C2 non-commercial / C3 study only).
Sources
- 双排管、ira 与 arca 的分工、传统两人各持一排，参 Wikipedia "Siku (instrument)" 与 Grove "Siku"；本文原创
- 安第斯排箫的材质、尺寸与 sikuri 合奏语境，参 Grove 与安第斯音乐研究通行叙述；印加之前的排箫实物与传说分开处理
- 曲库无该乐器录音，实例取 C1 的玻利维亚 sikuri 曲调与安第斯旋律作参照，逐条在 why 说明
Used for fact-checking only; all prose is original.