Hindustani instrument · Transverse flute

Fluteबांसुरी

A bansuri is a transverse flute cut from a single length of seasoned bamboo. It has no keys and no moving parts, only six finger holes, or seven in Pannalal Ghosh's style.

Family
Transverse flute
Material
Seasoned bamboo
Finger holes
6 (7 in Ghosh style)
Origin
Ancient India

Buy from us

Choose your flute

Ask about a custom order
  • Student

    Student flute

    From £250

    Ours suit the learner on a first raga.

  • Concert grade

    Concert grade flute

    Up to £500

    Concert-grade flutes come from established makers in India and suit the performer playing a full alap.

What to look for

A student bansuri and a professional bansuri differ in the bamboo and in how finely the holes are tuned; the key is a separate choice. Makers cut a concert bansuri from dense, even-walled bamboo, seasoned so the tube holds its pitch, and tune each hole against a reference note. Lower keys need longer flutes: a G-natural bansuri in the Horniman Museum's collection is 650 mm long. Ask your teacher which key suits your hands.

KalaSudha sells student bansuris and concert-grade flutes from established makers in India. Ours suit the learner on a first raga and the performer playing a full alap. Ask us for a quote, or for a flute made to order.

After you buy

Delivered worldwide
We pack every instrument for international shipping; ask us about cases and insurance.
Service and repair
We service and repair any flute, wherever you bought it, worldwide: ask us.
Strings, parts and cases
Ask us for strings, spare parts and cases, and about a size for a younger learner.
Help with your instrument
Ask us through the chat on any page, or by email, for help with your instrument. [email protected]
Gifts, schools and travel
Ask us about gift vouchers, class sets for schools, and flight cases and travel help.
Read the flute care guide
  • After playing: Breath condenses in the bore, so wipe it with a soft cloth or cleaning rod, then a dry cloth. Stand a played flute upright, head up, until it dries, then store it flat in a cloth bag or padded case, away from sun and heaters. Warm a cold flute to room temperature first.
  • Humidity: Rapid changes split bamboo along the grain, and the monsoon is the riskiest time in India. Avoid air-conditioning vents and sudden moves from cool rooms to humid air.
  • Oiling: Oil the outside every few months with almond or mustard oil. Oil the dry bore no further than the blow hole, with mustard or walnut oil on a cloth, then wipe off the excess.
  • Cracks: Bind a small crack tight with fine thread set in shellac or resin; this slows the split but will not bring back the original tone. If pitch or tone changes, ask us; on cheaper flutes replacement often makes more sense.

KalaSudha-Akademie

Learn the flute with us

All courses

KalaSudha teaches the bansuri online and in workshops, and every beginner starts at Foundation level. You begin with the embouchure, the shape of the lips at the blow hole, until a clear first tone sounds. Children learn with us as well as adults: ask us about a starting age, and about a flute size for a younger learner.

If you are taking up the bansuri again after a long break, our courses run in levels. Your teacher reviews where you stand, then you start again where you left off.

Your route, stage by stage

  1. Embouchure and first tones

    Beginners start here, at Foundation, in KalaSudha's courses. Hold the flute level, angled down to the right, with three fingers of each hand over the holes and the thumbs and little fingers supporting it. Set the blow hole against the lip and direct the airstream across it until a clear tone sounds. Build steady embouchure control before moving on to finger technique.

  2. Scale practice and sargam

    Practise the sargam scale (Sa Re Ga Ma Pa Dha Ni Sa) up and down across two octaves. Map each syllable to its finger pattern, with Sa sounding on the top three holes closed, and build muscle memory for every note's hole combination.

  3. Gamaka and half-holing

    Develop half-holing, covering part of a finger hole, to produce komal (flat) notes and microtonal shades. Practise meend, the continuous glide between notes, and use embouchure and breath to move between octaves. Players in the Ghosh style cover the holes with the fingertips; Chaurasia-style players use the finger pads.

  4. Raga alap and composition

    Begin a raga through its alap, the unmetered opening, then move into jor, the pulsed section, and jhala, the fast close. Sustain long phrases with controlled breath and steady pitch. Then learn a short gat or bandish, a metered composition, in tintal or rupak.

  5. Concert repertoire and improvisation

    Build a repertoire of ragas for different times and seasons. Improvise within each raga's ascent, descent and characteristic phrases, across the comfortable range, which on Ghosh's flute ran just over two octaves, using the strong upper register. Practise full performances with tabla, anchored to the cycle.

The instrument

About the flute

What makes a flute

What is a bansuri?

The bansuri is the side-blown bamboo flute of Hindustani classical music, and ours suits the learner on a first raga and the performer playing a full alap. It is cut from a single length of seasoned bamboo, with no keys and six finger holes, or seven in Pannalal Ghosh's style, so every note comes from breath and fingers.

What makes a great bansuri

Concert flutes come from dense, even-walled bamboo of Assam and Bengal, seasoned so the tube holds its tuning. Hole placement is the maker's critical craft: an experienced maker tunes each hole against a reference pitch and sands it true, because a misplaced hole cannot be fixed without spoiling its neighbours. Concert bansuris come in keys from C to A, most often G or C, and a longer, wider flute sounds lower and fuller.

Where the Western concert flute uses keys, the bansuri player shapes pitch with the embouchure (lips at the blow hole), breath pressure and half-holing. Covering part of a hole gives komal and tivra notes, microtones and meend, the glide of raga. The unmetered alap asks for long, quiet phrases and efficient breath, maximum tone from minimal air, with rests placed at points of musical structure; some players use circular breathing. Long alap is the bansuri's hardest discipline, because tone and pitch rest on breath alone. Hariprasad Chaurasia, who trained with Annapurna Devi of the Maihar gharana, is among the bansuri's best-known players.

Verlauf

Sanskrit texts name the venu and vamsha, bamboo flutes, as instruments of celestial musicians and of Krishna. For over two thousand years, well before medieval notation, sculpture across South and Southeast Asia has shown the flute with gods, gandharvas, court musicians and cowherds. The Natyashastra (2nd century BCE to 2nd century CE) groups flutes of various sizes and materials among the susira (hollow, wind) instruments of drama.

Folk and devotional players kept it. The Mughal-era classical stage, held by sarangi, sitar and sarod, thought it too narrow and too quiet. In the 1940s Pannalal Ghosh built a longer, wider-bore bansuri in G, opened a third octave and proved it on All India Radio and on record.

Hariprasad Chaurasia trained in vocal music, then with Annapurna Devi, daughter of Ravi Shankar's guru Allauddin Khan, and from the 1950s built a style of full tone and long, singing phrases. His Yaman, Bhairavi and Darbari became reference recordings; he worked with John McLaughlin in Shakti and with Shyam Benegal, and drew new audiences at festivals in India, Europe and North America. The venu, carried by T. R. Mahalingam and Shashank Subramanyam, grew in parallel: one build, different vocabulary, ornament and practice.

How a flute is made

A concert bansuri starts as a single internode of bamboo, the length between two nodes, from mature plants of three to five years with dense, even walls and straight grain. Assam and West Bengal give the best; a Horniman Museum murali from Assam uses bijuli bamboo (Bambusa pallida). The culm seasons for months or years, because unseasoned bamboo shrinks, shifts the holes and changes pitch.

A cork stops one end. The maker cuts or burns the blow hole just in from the node, drills pilot finger holes and enlarges them step by step against a shruti box or tanpura, sanding until each note is true. Each hole affects its neighbours, so the maker balances the whole flute, and a concert bansuri in G or C can take days to tune. Wall thickness shapes tone, range and octave tuning, and tuning varies between flutes.

Thread, silk, nylon or ribbon bindings protect the ends, and the bore may be lightly oiled. Keys run from C to A in several bores: a larger bore gives volume and a fuller low register, a narrower one a brighter, more agile sound.

At a glance

Classification
Aerophone: transverse flute
Primary material
Seasoned bamboo from Assam and Bengal, such as bijuli bamboo (Bambusa pallida)
Finger holes
6 holes (7 in Ghosh style), keyless; half-holing produces microtonal gamakas
Key figures
Pannalal Ghosh, Hariprasad Chaurasia, T. R. Mahalingam, Shashank Subramanyam
Primary tradition
Hindustani classical (bansuri), Carnatic classical (venu) and folk traditions
Concert pitch range
Keys C to A; concert bansuris are most often in G or C. Many leading players set Sa on E, and most own flutes in several keys.
Full specifications

Physical dimensions

Length (G concert bansuri)
~650mm
Length (C concert bansuri)
~380mm
Bore diameter (concert)
19–25mm
Wall thickness
3–6mm
Weight
80–150g (typical concert bansuri)

Material and bore

Primary material
Seasoned bamboo (Bambusoideae subfamily), one internode
Preferred source
Assam and West Bengal, India
Seasoning period
6 months to 2+ years post-harvest
Bore profile
Cylindrical (untapered)
Blow hole shape
Oval or elliptical
Finger hole count
6 (standard) or 7 (Ghosh-style)

Finger hole placement and tuning

Tuning method
Maker plays each hole against a shruti box or tanpura during construction; adjusts by sanding
Temperament
Just intonation (not equal temperament)
Microtonal technique
Half-holing produces komal/tivra variants and continuous meend (glide)
Full chromatic access
Via half-holing across all six or seven holes
Available keys
C, D, E, F, G, A (and intermediate variants)

Tonal range

G concert bansuri range
G3 to D6 (~3 octaves)
C concert bansuri range
C4 to G6 (~3 octaves)
Usable octaves in performance
2.5–3 octaves
Third octave access
Advanced embouchure control and increased breath pressure required

Acoustic characteristics

Frequency range (G bansuri)
~196 Hz (G3) to ~1,175 Hz (D6)
Volume
Soft to moderate; amplification common in concert settings
Tonal character
Warm, breathy; strong fundamental with soft overtones
Dynamic control
Via breath pressure and embouchure angle; very fine gradations possible
Sustain
Notes sustain for breath duration only; no mechanical sustain

Explore the music

Hear the flute

Hear KalaSudha's recordings and concert videos.

Players

Ask us to book a flute player for a concert, event or recording.

Book a flute player

Fragen

Flute: common questions

Buying, learning, care and the instrument itself.

Still have questions?

Our support team can help you find the right answer.

Support kontaktieren

Talk to us

Tell us about the flute you want

Ask for a quote on an instrument made to order, or about learning to play it with our teachers.

Stay close

Keep KalaSudha close.

Receive news of concerts, learning opportunities, recordings and the work taking shape at KalaSudha.
  • Concert news
  • Learning opportunities
  • Recordings and stories

We respect your privacy. Unsubscribe at any time.