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Tag Archives: tuning

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Kunti Hole Bushing

Sitar Factory Posted on Thursday, 14 April 2022 by AnandaSaturday, 16 April 2022


A sitar tuning peg or “kunti” works on the basis of friction. The peg is conically ground and is clamped into a conical hole. After some time, the surfaces will wear out and the peg will go deeper and deeper into the hole. Eventually it comes out deeper and deeper on the other side.

Usually the sitar pegs are made of a hard wood (ebony or rosewood or sheesham) and thus the hole in the neck, which is made of a softer wood (tun or teak), will wear out.

Time to mount new pegs that are a bit thicker. But actually there is nothing wrong with the original tuning pegs. A solution is to provide the holes with a new layer: the kunti bushing.
For this you can use sandpaper of a good quality. The back side, which is made of strong paper, can serve as a layer of wood while the rough sanding side provides an excellent adhesion inside the hole.

It is a matter of cutting out a well-fitting piece of sandpaper and gluing it properly into the hole. Make sure that the sandpaper fits perfectly and does not overlap. Also make sure that no glue gets between the kunti and the bushing. The glue should only be sitting between the rough sandpaper-side and the hole in the neck.

You can use the peg itself to fit the sandpaper in the hole and as a clamp to keep the sandpaper in place while drying.
When everything is dry, you can cut away the excess piece of sandpaper with a sharp chisel.

In this way, the original pegs can continue to be used.

Keep in mind that this bushing will have to be replaced after a while. The paper will wear out faster than the wood of the neck. It is best to look out for professional quality sandpaper. Then you will be at ease for a long time!

 

See more at this new Repairs-page: Kunti Bushing

Posted in repair | Tagged Kunti, neck, SitarRepair, tuning | 3 Replies

Dagar Tanpura

Sitar Factory Posted on Wednesday, 26 August 2015 by AnandaWednesday, 21 July 2021

Ud H. Sayeeduddin Dagar, a great dhrupad singer, cousin uncle from the legendary Dagar brothers, frequently visits Belgium for concerts and teachings. Because travelling with big tanpuras is not easy and not without risk, Dagarji has kept a couple of them here resident for this purpose. Recently, a huge, very old and worn tanpura was in the shop. It was made by famous tanpuramakers from Miraj: Abdul Sattar & Hadji Abdul Karim. There was a minor tumba crack to be repaired and a new jawari to be fitted. The ghoraj, specially made for Dagarji, came as a massive and impressive plain staghorn piece, with a big, very roughly curved surface. Firstly I have made this surface smooth and softly rounded with a coarse file. After that I used soft blocks of upgrading sandpaper to polish the curving perfectly to its final shape.

At his request, special thick pins are mounted under the feet to prevent the ghoraj from slipping. Note the amount of holes which were already made in the tabli before. I decided not to make any more other new holes but to use a couple of existing ones.

Sound sample:
Play Tanpura in B-flat

The scale (open string length) of this huge instrument is 96,5cms and it is tuned to B-flat.
The Ud H. Sayeeduddin Dagar custom string set is
1: 0,60mm steel string tuned to E#1
2: 0,60mm steel string tuned to A#2
3: 0,60mm steel string tuned to A#2
4: 0,91mm bronze string tuned to A#1

Posted in listen, maintenance | Tagged Dagar, ghoraj, Jawari, Tanpura, tuning | Leave a reply

Tuning problem: Cracked wood

Sitar Factory Posted on Saturday, 16 May 2015 by AnandaTuesday, 5 January 2016

On a traditional sitar, tuning is established by pressing a wooden peg (kuti) into a hole. Unfortunately the wood on this Barun Ray sitar is cleaved. There is a long and deep split line between the baj and jora kuti. Both strings were not keeping tune anymore. The pegs got loose too easy. How this has happened is difficult to say. Maybe during a transport something has been hitting the kutis and made the wood split. Or maybe that the wood was already damaged at the moment of selection or during the construction of this sitar. Thus weakened, it may got easily split caused by the high pressure coming from the kutis being squeezed into the hole during tuning activities.

But the repair of this defect is not so difficult. First thing to do is to remove the decoration along the head. Then split the upper head plate from the latter curved neck piece.

Repair the crack with glue and, at the same time I ‘ve added a reinforcement piece of wood on the inside. On this piece the grains are running in a perpendicular direction in relation to the wood of the head plate.

Close the head and fix the deco. Finally drill the hole and clean it.

Finish with some fresh shellac and fit the kutis again. Done…

Posted in repair | Tagged HirenRoy, SitarRepair, tuning | 1 Reply

Sitar in E

Sitar Factory Posted on Tuesday, 31 March 2015 by AnandaSunday, 15 November 2020

In the musicschool of Breda (NL) De Nieuwe Veste resides a very inspiring, young sitarteacher. In order to motivate new pupils he teaches them first to play rather light classical music and easy popular tunes. Therefore they need their student sitar being tuned in E (instead of C#). Notes have to be shifted from C# to E and because of the rather high shift we have been fitting a very light string set.

MA = A
SA = E
PA = B
GA = G#

Extra light string set:
Baj = N°2 = 0,28mm steel
Jora = N°3 = 0,30mm steel
Laraj = N°27 = 0,37mm bronze
Kharaj = N°25 = 0,51mm bronze
Pancham = N°1 = 0,25mm steel
Cikari = N°00 = 0,19mm steel

The sitar now plays very light and easy and results in a sharp but rich and funny, jolly sound.

Sound sample:
Play Sitar in E

Posted in listen, playing | Tagged tuning | 1 Reply

Dead notes

Sitar Factory Posted on Sunday, 22 September 2013 by AnandaWednesday, 21 July 2021

In music, a ghost note, dead note, or false note, is a musical note with a rhythmic value, but no discernible pitch when played. On stringed instruments, this is recognised by the sound of a muted string. Muted to the point where it is more percussive sounding than obvious and clear in pitch. There is a pitch, to be sure, but its musical value is more rhythmic than melodic or harmonic… (source = wikipedia)

Until now I haven’t been confronted with severe dead notes problems yet. I have experienced the phenomenon a couple of times, but not at such a degree that my clients have asked me to intervene.
But it happens that one of my wife’s sitars suffers from this, and recently an extra occasion came with this mail by Toss Levy: “… Dead notes on a sitar have always been a problem. Mostly by careful jawari and work on the taraf bridge and strings, I could get a better resonance. I have found dead-notes to be on most instruments and consider the instruments with a responsive resonance over the entire note range rare but of super quality. For me, and maybe in my ignorance, I have accepted the dead-notes as a sign of a lesser quality instruments… How does one go about solving the dead-note problem ??…” :

From my school-time I always remember an important basic physics law about acoustic resonance (source = wikipedia):

k = stiffness
m = mass
ωn = radian frequency (radians per second)

From the radian frequency, the natural frequency, fn, can be found by simply dividing ωn by 2π. Without first finding the radian frequency, the natural frequency can be found directly using:

k = stiffness (Newtons/meter or N/m)
m = mass(kg)
fn = natural frequency in hertz (cycles/second)

This equation tells me that the resonance frequency is proportional to the stiffness and inversely proportional to the mass of an acoustic system. It sounds logical, and gives us a rather simple tool to influence the phenomenon:

Working on the stiffness includes interfering in the instruments basic wooden construction: tabli, tumba, neck, joint etc. …   But this is uttermost time consuming and almost impossible to experiment with, and surely not, on an expensive well-built sitar.

But working on the mass can be done very easy: I did some experiments on adding mass to the ghodi (jawari – bridge construction) and the result is very promising. I have prepared and selected a couple of metal parts (lead) ranging from 10g, 20g, 30g,… to 150g and attached these one by one to the ghodi. And as the formula predicts, the resonance frequency is really shifting down. In my case, with 30g added, from komal GA towards main tonic SA where the amplitude of the resonance has been reduced such that it is almost not heard anymore.

Results (sound samples):
1: Play original jawari (nothing added)
2: Play jawari + 10 grams added
3: Play jawari + 20 grams added
4: Play jawari + 30 grams added
5: Play jawari + 50 grams added
6: Play jawari + 100 grams added
7: Play jawari + 150 grams added

Comments on the results:

1: Dead note is clearly heard on komal GA, also noticeable on GA. (Never mind the missed NI…).
2: Dead note is already reduced in amplitude and slightly shifts towards RE.
3: Dead notes amplitude is even more reduced and shifts over RE.
4: Dead note is now almost disappeared, reaching SA.
5: Dead note is now completely gone, but the overall sound is losing low frequency range because of the damping effect of the weight.
6 & &7: The overall sound loses more and more low frequencies because of an increased damping effect.

Some considerations:

Bandwidth = Δf = f2 - f1Adding a weight to the jawari can be compared to the act of adjusting a kind of acoustic audiofilter. This implicates that when talking about acoustic waves there are always 3 parameters to keep in mind: fo, the frequency itself; A, the amplitude (how strong is the influence) and Q, the quality factor which is related to Δf, the bandwidth. This means that adjacent frequencies are involved in the proces. The lower the quality factor, the bigger influence will be noticeable on adjacent notes or srutis too. This one can be determinative for the result.

Unfortunately it is not a linear but an exponential equation. The result of the operation becomes stronger and stronger OR lesser and lesser at an exponential rate… This means that the practical adjustable range will be limited, and probably difficult to measure. Trouble might be to find a good starting weight. But, patience is a golden virtue…

Posted in listen, playing | Tagged ghoraj, Jawari, tuning | 9 Replies

Swarangini Modification

Sitar Factory Posted on Friday, 26 July 2013 by AnandaTuesday, 5 January 2016

Swarangini Digital is an electronic tanpura machine that delivers high quality original tanpura sounds. It has been introduced to the market in 2008. For more info about this very handy and popular machine visit the Sound Labs website. The machine is excellent for tuning and accompaniment. But, since this is a digital machine, it has a big disadvantage: the main volume is not anymore adjusted continuously but in steps. And, unfortunately, these steps are rather big, especially in the lower volume regions. Also the lowest sound ever is still much too loud in many occasions such as practice at home.

The most simple and very adequate solution is to create yourself an analog volume fine tuning knob by putting a potmeter in series with the loudspeaker. The only consideration which has to be taken into account is that this part of the circuit works under a slightly higher current level since it is the main amplifiers output. So, best is to choose a wire-wounded (high power) potmeter. A value of 50 Ohms, 4 Watts works great.

Open the box by removing the 4 screws and cutting the warranty seal sticker. Drill a 10mm hole through the side and remove the excess plastic on the inside to make room for the potmeter. Fix the potmeter and loosen the black wire which is leading to one of the solder lugs of the speaker. Solder this wire to the middle lug of the potmeter. Take another piece of insulated copperwire and solder it between the adjacent potmeter lug and the speaker lug on which the black wire was attached before. Close the box and mount a nice knob. Thats all for your custom volume finetuning knob…


Posted in varia | Tagged electric, Tanpura, tuning | 2 Replies

Travel Sitar Mods (2)

Sitar Factory Posted on Sunday, 27 September 2009 by AnandaSunday, 27 September 2009

This modification I made to Mark B’s Travel sitar because he was unable to play the jora tar comfortably. The steel wire jora tar, although open correctly tuned, sounded too high while playing a note on the pardas.

I added a fibre intonation block to the jora tar, just as I did with my own made SAS and SBS sitars. Now he can play the jora tar up to the middle note Sa without any problem and accurately without meend.

Posted in making, playing | Tagged RikhiRam, SitarMods, tuning | Leave a reply

Jora tar intonation on SAS & SBS sitars

Sitar Factory Posted on Wednesday, 31 December 2008 by AnandaTuesday, 19 March 2013

Many sitars suffer from an improper intonation. Mostly affected are jora and laraj kharaj strings. If you are lucky you should be able to play comfortable on the first couple of frets only. After this, immediately pulling meend to correct the tone becomes a must. It is almost a part of the advanced sitar learning process…!!?

On my electric sitars only steel strings are used. Bronze flatwounded strings for laraj & kharaj and plain steel strings for jora. And this thick steel jora again causes some weird troubles. The intonation is far from correct and has this strange behaviour that the tone is too high rather than too low. This means that pulling meend to correct the difference is extra complex. One can only play a higher note on the particular parda…!!

The solution is to shorten the jora string. This is done by adding an intonation block to the tar daan under the jora. This block needs to be made at a particular lenght. My good friend and fine sitarplayer Bert Cornelis helped me to tune the sitars very accurately. Then we temporarily fixed a small piece of bone under the string to immitate the intonation block and as such we were able to measure its desired lenght. SAS-01 needs 10mm of intonation block lenght, SAS-02 only 6mm and SBS-02 12mm.

Day 68 & 69: The intonation block on the SBS-02 and SAS-02 is made out of a piece of extra hard and strong indian rosewood. The block is inserted into the tar daan and is armed with a short pin into the head to make sure it will not become loose when playing meend on the jora.

On the SAS-01 a small piece of stagg horn is used. It is also armed with a steel pin into the head’s wood. Now these sitars are very comfortable playing on the jora without hardly any correction up to reaching the middle SA parda.

Posted in making, playing | Tagged Jora, SAS, SBS, SitarMaking, steelstring, tuning | 5 Replies

Jora tar tuning problem

Sitar Factory Posted on Saturday, 27 September 2008 by AnandaMonday, 14 October 2013

Very soon after finishing the first 2 sitars (SBS-02 & SAS-01) I encountered a strange problem. The jora tar, which is now a steel string showed a strange behaviour. After tuning the strings properly and playing a meend on the baj tar (playing string) the jora sensitively raises in pitch while all other strings nicely regained their original pitch. Very rarely I ‘ve been noticeing this behaviour on traditional sitars before, but always it was much less pronounced and many times it disappeared after some time playing. Yet this time the jora raised almost a quarter tone on the SBS-02, and even after some days playing this inconvenience remained.

After a couple of sleepless nights I found out that it was the main jiwari which caused this malfunctioning. While pulling the playing string down (playing meend) the whole body bends (like a bow) and the main jiwari comes forward. All the other strings loosen their pitch (going low). Releasing the playing string from its meend position makes the instrument go back to its original shape, thus the jiwari is being pushed backwards to its original position. At this moment, the jiwari is also pulling all the strings backwards. But because the steel surfaced jora string is more rough and doesn’t have the same lubricating behaviour as a bronze string (original jora and laraj kharaj) the result is a considerable raised pitch.

The solution to this is very simple: carbon. With an ordinary pencil, I applied some carbon to the surface of the jiwari, straight under the jora tar’s position, and the problem was solved. But.., not for 100%. Still I noticed a very slight mismatch. Here and now the cause was quickly found: also the upper tar daan is having some difficulty to restore the steel jora tar to its original tension. Applying some wax to the contact surface between the jora string and the tar dan made an end to this jora tar tuning phenomenon.

Posted in maintenance, making, playing | Tagged electric, Jawari, Jora, SAS, SBS, SitarMaking, steelstring, tuning | 2 Replies

Basic sitar tuning

Sitar Factory Posted on Saturday, 31 March 2007 by AnandaSaturday, 31 March 2007

I added a basic sitar tuning chart to the maintenance page…

unloaded picture, try CTRL + F5

I hope it helps some motivated beginners to start the journey.

Posted in playing | Tagged tuning, varisitari | Leave a reply

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