Last Update:

Sales gallery of didgeridoos made from Hempstone R.

F

19st of Okt 2023, 14h

 

All Didgeridoos listed in this gallery are made from the ecological Material Hempstone and are produced in Austria, Europe.
Hempstone was invented in Austria and consists only of industrial Hempfibre, Hempcellulose.
The innovative material allows us to produce Instruments with extreme high sond quality standards.

Read more about the special advantages of the natural Material fom hemp cellulose.

 

"The best didgeridoo?"
In essence the shape of the inner bore of a didgeridoo
determines the character of the sound.
Our motto is diversity
and this instrumeent allows it in a special way!

Design:
Have courage to color,
you also play not only noise !
Nature interacts with light and that has color.

The kind of the material such as different kinds of wood, plastic, glass, concret, Hempstone, mainly influences the higher frequences of overtones and in this way the overblows and their higher harmonics. Hard and more elastic materials resonate at higher frequences and are aplifying this spectrum with theirs resonances.

Types:
Conical, cylindric, octave, hyperoctave, hypooctave,
suboctave ("multidrone"), regular, irregular, complex.
Impressions:
bassy, loud, sharp, sharp, aural dazzling, smooth,
wobbling, singing, traditional, progressiv, and so on.

Black is the lack of light
and in white all colors are mixed !
I enjoy working with intense colors.
The influence of the material is also strongly dependet on the wall thickness. The thicker, the heavier and harder the instrument is, the lower the influence, namely the sound absorption, consiquently the attenuation but also the amplification by resonances.

The gallery is arranged in five categories
and assorted by pitches descending.
Click on the pictures for detailed information
(You´ll find the legend at the end of the gallery.)

The design of Hempstone is a technical challenge.
The fibrous material is renitent, difficult to process,
is changing structure due to shrinkage and
requiring a special category of creativity.

For orders or request: contact.

We ask for moderate prices, ship worldwide.
Information about order, shipping and payment
you will find at the end of the gallery.

The enharmonic keys of the scales are listet in two lines parallel.

1st Category:  Conical didgeridoos with first overblow exactly on octave or very near at octave.
Base
key

! means
different
chamber
pitch !
Serial
number
Foto with link to detail page

Weight, (kg) //
Lenght (cm),/
Bell inside, (cm)/
Mouthpiece
inside (cm)

Mold
nb
inter-
nal
Basic sound
(middle at 24 dgr C),
Oveblows,
separated with /,
marked deviations
in +– Cent
(half step=100 Cent)
Basic
sound
frequ.
(Hz,
middle
at
24dgr)
Refe-
rence Frequ.
cham
ber -
pitch A
)
(Hz)
Samp-
les

Price

( Euro
incl.
20%
Austria
turnover
tax )

F !
Dg523
1,8 kg
157,5 / 10,9 / 3,2
F18Z
F // F / C F#
432

780.-

New E ! Dg521

1,9 kg
177,8 / 13,2 / 2,9

F254Z E // E/ A#/ E 432 792.-
E !
Dg524
1,9 kg
164,8 / 10,2 / 3,0
F208Z
E// E / Bn / E / Bb
432
816.-
D# !
Dg529
1,9 kg
175,5 / 10,5 / 3,1
F116
D# / D# / Bb / E / A
432
852.-
New D !
Dg570
3,1 kg
199,69 / 12,8 / 2,8
F672
D / D / A / D / G
432
960.-
Db
Dg397
2,5 kg
197,9 / 9,1 / 3,0
F303
Db / Db / Ab-30 / D / F / A
440
684.-
C# !
Dg402
3,4 kg
201,2 / 12,1 / 3,3
F297
C# // C# / G# / D / G
432
1092.-
C#
Dg459
2,9 kg
198,8 / 9,8 / 2,9
F363
C# // C# / A / D 7 G-30 / Bb+10
440
792.-
C#
Dg488
4,3 kg
195,4 / 11.9 / 3,2
F294
C# // C# / G#+30 / D#-30 / G+40
440
1272.-
C#
Dg458
2,9 kg
// 199,4 / 8,7 / 2,9
F394
C# / C# / A / D+40 / G–20 / Bb+20
440
732.-

 

2nd Category: Conical didgeridoos with first overblow higher than octave and also more cylindric didgeridoos.
Base
key

! means
different
chamber
pitch !
Serial
number
Foto with link to detail page

Weight, (kg) //
Lenght (cm),/
Bell inside, (cm)/
Mouthpiece
inside (cm)

Mold
nb
inter-
nal
Basic sound
(middle at 24 dgr C),
Oveblows,
separated with /,
marked deviations
in +– Cent
(half step=100 Cent)
Basic
sound
frequ.
(Hz,
middle
at
24dgr)
Refe-
rence Frequ.
cham
ber -
pitch A
)
(Hz)
Samp-
les

Price

( Euro
incl.
20%
Austria
turnover
tax )

D
Dg494
3,1 kg
180,9 / 13,3 / 3,1
F443Z
D // E+30 / A +30 / F-30 / A-40
440
1188.-
D
Dg493

3,2 kg
178,0 / 13,9 / 3,2

F444Z
D // E+40 / A#-50 / E-20 / A4+20 / Bn+40
440
1176.-
D !
Dg490
4,1 kg
183,2 / 12,2 / 3,2
F7
D // E / Bn / E / G#
432
984.-
C
Dg339
3,3 // 194,5 / 9,6 / 2,8
F282
C / D# / G# / E /
C /Eb / Ab / E /
440
456.-

 

3th Category: Conical digeridoos with first overblow below the octave and related instruments.
Base
key

! means
different
chamber
pitch !
Serial
number
Foto with link to detail page

Weight, (kg) //
Lenght (cm),/
Bell inside, (cm)/
Mouthpiece
inside (cm)

Mold
nb
inter-
nal
Basic sound
(middle at 24 dgr C),
Oveblows,
separated with /,
marked deviations
in +– Cent
(half step=100 Cent)
Basic
sound
frequ.
(Hz,
middle
at
24dgr)
Refe-
rence Frequ.
cham
ber -
pitch A
)
(Hz)
Samp-
les

Price

( Euro
incl.
20%
Austria
turnover
tax )

New D Dg571 3,2kg
209,3 / 9,5 / 3,0
F594 D // Bn / G / D# 440 852.-
C#
Dg478

3,8 kg
203,6 / 9,2 / 2,9

F394
C# // C#-30 G#+30 / D / F# / Bb
440
852.-

 

4th Category: Didgeridoos with first overblow far below the octave, so called multidrone didgeridoos and related instruments.
Base
key

! means
different
chamber
pitch !
Serial
number
Foto with link to detail page

Weight, (kg) //
Lenght (cm),/
Bell inside, (cm)/
Mouthpiece
inside (cm)

Mold
nb
inter-
nal
Basic sound
(middle at 24 dgr C),
Oveblows,
separated with /,
marked deviations
in +– Cent
(half step=100 Cent)
Basic
sound
frequ.
(Hz,
middle
at
24dgr)
Refe-
rence Frequ.
cham
ber -
pitch A
)
(Hz)
Samp-
les

Price

( Euro
incl.
20%
Austria
turnover
tax )

                   
Eb (D#)
Dg454
3,2 // 201,3 / 9,8 / 3,0
F411
...< / Eb / Bb / Bb+10 / Db+10
...< / D# / A# / A#+10 / C#+10
440
792.-
Eb (D#)
Dg456
3,4 // 204,3 / 10,1 / 3,1
F414
...< / Eb / A+50 / A+50 / C+50
...< / D# / A+50 / A+50 / C+50
440
zu testen bei Absolem Hartberg
792.-
D
Dg452
3,2 // 209,0 / 9,9 / 3,2
F413
..< / D / A–40 / A+20 / C+20 / G#
440
792.-
                   

 

5th Category: Didgeridoos with complex bore and special forms. experimental forms and didgeridoos with special effects
Base
key

! means
different
chamber
pitch !
Serial
number
Foto with link to detail page

Weight, (kg) //
Lenght (cm),/
Bell inside, (cm)/
Mouthpiece
inside (cm)

Mold
nb
inter-
nal
Basic sound
(middle at 24 dgr C),
Oveblows,
separated with /,
marked deviations
in +– Cent
(half step=100 Cent)
Basic
sound
frequ.
(Hz,
middle
at
24dgr)
Refe-
rence Frequ.
cham
ber -
pitch A
)
(Hz)
Samp-
les

Price

( Euro
incl.
20%
Austria
turnover
tax )

D
Dg353
2,9 // 167,8 / 11,2 / 3,3
F183
D / E / Bn+40
440
564.-
C
Dg428
7,0 // 214,5 / 9,2 / 2,9
F401
C / C / G#-40 / C#+20 / F#-40 / A-20
440
1560.-
New A1
Dg539
3,2kg
208,9 /10,7 /3,0
F575
A1 // D#3 /A#3 / D#4 / G4
432
924.-
New G1
Dg569
3,2kg
208,9 /10,7 /3,0
F578
G1 // D3 /A3 / D4 / F#4
440
936.-
                   
                   

Legend :

In the table you find: Type, key, serial number, foto with link, dimensions (kg, cm),
weight (kg), // length of the didgerodoo, (cm) / diameter inside of bell (cm) / and inside of mouthpice (cm),
form number ( internal).
Tuning: First, second, third and so on overblow, according to the international chromatic tuning based at frequency of A= 440 Hz.
The basement frequence and the reference chamber key A freqence is added (Hz).
The price is included Austrian turnovertax, customers inside EU with EU turnover tax registration and customers out of EU don´t pay the turnovertax.

The German H is here corresponding to the international spelling as B and to avoid confusion it is written as Bn ( B naturalis), sometimes with Bo.
The German deminished H (germ. B, A#) is referred here as Bb.

The enharmonic keys of the scales are listet in two lines parallel.

Fotos: At most didgeridoos you will find a small mark near the mouthpiece, a small scratch in the material.
It marks the original size of the calculated or constructed shape, added by the tuning zone.
This tuning zone allows to shorten the didgeridoo to the right pitch without affecting the thicker part of the instrument.

A callsign next to the basic key means the instrument has a different reference tone, a chamber pitch different from A = 440 Hz
see also "Special" below.


Orders:

The prices are calculated according to a point system, considering the model, the sound, design, size, weight, surface treatments, inlays, etc.
Orders can be confirmed by email, by phone with following email conformation.
After order we send an invoice with all business data and data of instruments as pdf or by letter, as you prefer.

For initial contacts with companies abroad as well as private customers outside Austrias we request for payment in advance, by bank transfer or Pay pal.
The shipping is within EU and for parcels under 2 meters lenght with GLS,
outside EU and parcels longer than 2 meters with UPS or with the shipping company Gebrüder Weiss.
We accept a 14 day return, but costs for transport is to pay by the customer.
Inquires about additional information please send by email or phone,
skype: (drumparam, please make an appointment by sms or mail)


Special :.

If desired, we sometimes build instruments with a different reference tone A, the so-called "chamber pitch".
Therefore, the reference tone is explicitly stated for each instrument.
In the esoteric scene, a chamber pitch A = 432Hz is often desired, the instruments are then tuned about 30 cent lower,
an A in this scheme is just 30 cent deeper and no longer fits with other instruments.
For more details, see the music theory, e.g. On Wikipedia.
In the Internet, there are practical conversion calculators, with the help of which one also learns to understand the system well.

Significant deviations from the exact pitch are given in + - cent.
100 cents are a semitone, thus an octave is divided into 1200 cent.
Important to know is that all sounds are variable by the lip tension and anatomy of the players at the height,
This is particularly in wider range possible at the fundamental tone. ("Pull up or down the notes.")

Also the temperature of the air in the instrument has a strong influence on the pitch,
A degree Celsius change causes a pitch change of more than 3 cent, depending on the design, but getting colder to deeper, warmer to higher.
Humidity and CO2 content of the breathing air have less influence, since the effects compensate each other.
If an instrument has succeeded in all over-blows and the fundamental tone in a particularly pure tuning
or deviate from it, this is also noted in the more detailed description (picture link).

The pitch is dependent on the air temperature and the playing technique, the didgeridos are tuned at 22-24 grd C.
Depending on the type of construction a temperature difference of 25 grd C can be used Change the pitch to a semitone step!
That is up to 4 cent per grd C! (100cent = one semitone step).
Since the tone can also be pulled up and down by the lip tension and the playing technique is very individual and different,
we sometimes prefer the instruments to be about 5-10 cent deeper than the corresponding (Ref A = 440Hz) semitone step.
You find a small mark, a scratch near the mouthpiece, it marks the original constructed or calculated shape.
Added to this mark is the tuning zone of the instrument, it allows the fine tuning by cutting it without affecting the thicker part.

By shortening the mouthpiece (simply with saw and abrasive as with wood) the instrument can be adjusted to higher individual tuning.
On request, we can do it in a few minutes in our workshop for you.
Depending on the size and design, a reduction in the mouthpiece area of about 1 cm causes a base increase by 5-12 cent.
The ratio of the over-blows to the root-tone changes more or less, especially with conical instruments, usually only slightly at 1 cm shortening.
This is also the case with instruments with a variable mouthpiece (SlideDidge).

The sound and the tone conditions of a didgeridoo as well as all other wind instruments are decisive
determined by the internal form, the so-called scale (bore).

It is the air column which longitudenal oscillates and its shape determines the resonances
of the different modes of oscillation and the ratio of their overtones.
Also the anatomy of mouth and the airways are involved in this process, the pressure, the lip tension, in this way we play this instrument.

The material of the instrument plays a lesser role, if enough wall thickness is present.
Only in the much higher vibration modes can the material also have a more influence,
since at higher frequencies the radiation of the sound is proportionally increased by the instrument itself.
This can support a special sound characteristic of the higher overton spectrum and vary material-related.

Since the didgeridoo plays at very low frequencies the influence of material, wood, hempstone, etc.
Only with special playing techniques where high notes come into play, Such as beat boxing techniques and explosive loudness,
open plops can be noticed at all.

As double-blind studies with professional musicians in the field of electric guitars have shown,
are also professional musicians not able to distinguish clearly between the types of wood of the elekctro guitar.
With acoustic guitars this is rather possible, whereby the construction plays a larger role,
as far as the instruments are processed high-quality.

The same is to be expected with Didgeridoos, I am glad to create test situations for studies.

The investigation of the modes of oscillation of closed air columns as well as the materials
represent an interesting field of reserch and serves as an essential basis for the development of our instruments.


Norbert Schmid



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