There was a rumour that a small business in Jakarta, Indonesia, namely
the firm P.T. Prajawidya Instrumentalia built harpsichords and organs.
This small enterprise was founded in 1991 by Rev. Harry van Dop and
Mr. Henk Vonk. 'Widya' means 'knowledge' as well as 'can make.'
'Praja' refers to a work place. The founders made it their goal to
serve current and future musical needs in Indonesia by constructing
instruments using indigenous materials. As such, it represents a
continuation of an Indonesian cultural tradition where crafts using
materials from nature have a centuries long history of delivering
quality musical instruments.
The builder explains
"Bamboo is the material from which the pipes are made. The most
suitable is found in the area around Bogor, a little higher up on the
hills. It has to be thin walled which makes it somewhat difficult to
find. When the bamboo canes arrive, they are still green and need to
dry undisturbed for several months. Initially, full sunlight has to be
avoided since this creates stresses which quickly causes the bamboo to
split. With the large, wide bamboo, the diaphragms (the partitions
between segments) need to be removed. In Indonesia, bamboo is used not
only for musical instruments but is suited to a thousand and one uses,
e.g. in the construction industry.
Djati teakwood, which is particularly durable, is used for the case.
We purchase the wood in log form and then cut it into planks. The
planks then spend 1.5 to 2 weeks in a drying oven until the water
content is reduced to 8 or 9%. For certain critical parts we use
Sunkai, a light wood with long fibres.
For the key coverings on the keyboards we use ebony. It is a hard wood
and a special saw blade is needed for cutting it. In Indonesia this
wood is known as 'Kayu Besi' or black wood. When it is polished it has
a nice grain.
Once the organ is completed and the bellows provide sufficient wind at
a pressure of 70 to 80 mm water column, the important work of voicing
begins. In an organ with bamboo pipes only, the variety of tone
colours is of necessity less than in an organ with pipes of wood and
tin. The sound is very natural and the reason bamboo is often used in
tropical lands for making musical instruments."
Technical information
Wind pressure: 75 mm
Tuning: a' = 440 Hz.
Temperament: Equal.
Pedals: 30 keys.
The 3rd manual has no stops. It is only the coupler of man.1 to
man.2
Coupler manual 1 + Ped.
Coupler manual 2 + Ped.
Coupler manual 1 + 2. (Added in Hauptwerk for use with a console with
2 manuals and pedals.)
Specification of the Bamboo
organ in Roeselare
(green has been added for Hauptwerk)
Manual 1: C - g'''
Manual 2: C - g'''
Manual 3: C - g'''
Pedal: C - f'
Prestant
Octaaf
Octaaf
Holpijp
Quint
8'
4'
2'
8'
2 2/3'
Quintadena
Roerfluit
Picolo
8'
4'
2'
Coupler Manual
Prestant
Subbas
8'
16'
Pedal: 30 keys.
The 3rd manual has no stops. It is only the coupler of man.1 to man.2
Coupler manual 1 + Ped.
Coupler manual 2 + Ped. Coupler manual 1 + 2 (Added in Hauptwerk for use with a console with
2 manuals and pedal).
F. Asma - Gezang 113
F. Asma - Gezang 173
G. Young - Prelude in Classic style
F. van Tilburg - Psalm 121
J. Zwart - Scheepje onder Jezus hoede
F. Asma - Gezang 280
J. Mulder - Geprezen zij de Heer
J.H. Buttstedt
- YouTubeJ.G. Walther - Nun kommt de Heiden Heiland
- YouTube
F. Mendelssohn - Andante Religioso
J.S. Bach - Herzlich tut mich verlangen
J.S. Bach - Preludium en Fuga C Dur
J.S. Bach - Preludium en Fuga F Dur
Download Information
of the Bamboo organ in Roeselare
Download files: Once we receive your payment, you will gain access to the download files via email.
Important : Before download, first read the comments below at
'General'.
General
Installing a sampleset
Before download and install, note the following:
1. Download all .CompPkg.Hauptwerk files.
2. Leave these files in the same folder and
3. Do not change the file names and
4. Do not unpack by hand.
5. Check the MD5 checksums with the WinMD5 program, free to download
from
http://www.winmd5.com
or http://www.fastsum.com If a checksum is incorrect, discard the wrong download file
from the PC and download that file again.
6. Start Hauptwerk (File/Install organ....), select in the folder where
you just downloaded the files,
the file with extension .CompPkg_Hauptwerk_rar in Hauptwerk's 'component installer'.
Hauptwerk automatically finds the other files.
7. If you get error messages, scroll to the end of the log file (this
opens automatically if something goes wrong when unpacking) to see
what goes wrong.
Usually a file is missing, or there is a file in the wrong folder or
a file is damaged.
8. Before loading the sampleset, check the
system information
regarding the expected memory usage etc.
Note: Please contact us via the
Contact form if you encounter any
issues; we will try to assist you.
System requirements
of the Bamboo organ in Roeselare
a modern fast computer with e.g. Windows 10 64 bit and about 4 GB
RAM
a good internal or external sound card
1 manual/keyboard with (at least 25 keys) pedal òr a complete
electronic organ with MIDI out
good quality speakers /headphone
The computer
To play the full Hauptwerk 5 version of this sampleset without
restrictions you need a high-speed modern computer with e.g. Windows
10 64 bit and about 4 GB RAM installed. The best results are possible
with computers of Apple-MacIntosh. We do not have experience with the
Mac. It is very difficult to specify exactly what you need. The
"mother" website hauptwerk.com gives much information about this.
Prerequisites .
This virtual Bamboo organ is only available from Hauptwerk version 5
or higher and can be downloaded.
Below is a Table of memory usage .
On other systems, these values can vary considerably!
Please note that your Operating System also requires considerable
memory.
The sound card
A good internal or external sound card. For more information go to:
hauptwerk.com .
Manuals/keyboards/pedal òr complete organ with MIDI out
1 manual/keyboard and a (at least 25 keys) pedal òr a complete
electronic organ with MIDI out.
Beautiful consoles specifically designed for Hauptwerk are
commercially available.
In the Netherlands these are available through, for example,
Those who are technically inclined can provide their keyboard with
MIDI capability using hardware from, for example,
WIRA,
MIDI-Hardware.com
or MGB . We ourselves have
done this using a Heyligers organ dating from around 1975 (using WIRA
hardware). The conversion was about 300 Euro and everything has worked
perfectly for years.
Speakers/headphone
The superb sound quality of Hauptwerk is best experienced through
high-quality headphones, such as AKG or Sennheiser.
We prefer connecting the sound card to a (possibly multi-channel)
sound system. The above mentioned companies can also advise you on any
purchases in this area.
What you definitely should not do is listen to Hauptwerk
through the built-in speakers of the monitor or a set of €10 computer
speakers!
Table of memory usage
of
the Bamboo organ in Roeselare
From Hauptwerk 5 (space needed on you hard drive ca 2.2 GB)
Load manner
Memory Requirements Operating System not included
Loaded 16 bit 48 kHz, all compressed, multiloops, multirelease,
noises.
1046 MB
Loaded 16 bit 48 kHz, uncompressed, multiloops, multirelease,
noises.
1633 MB
Loaded 24 bit 48 kHz, all compressed, single loop, single
release, noises.
1120 MB
Loaded 24 bit 48 kHz, all compressed, multiloops, multirelease,
noises.
2300 MB
Full loaded 24 bit 48 kHz, uncompressed, multiloops,
multirelease, noises.
3030 MB
Screen layout of the Bamboo
organ in Roeselare
Virtual console
This sampleset can be used without problems a.o. with the free
version of Hauptwerk 5 Lite Edition.