Just a 'snipsnap' about leon theremin and the development oh theremin the early electronic musical instrument. 1920s

2.  The Theremin is a monophonic instrument
which is the instrument only produced one
note at the time.
 Theremin is an early electronic musical
instrument that generates sound of varying
pitch and volume depending on the proximity
of the musician’s hands to two antennae
mounted on the instrument
 This instrument is a ‘space-controlled’ and
controlled by the motion of the hands.

3.  Lev Termen Or also known as Leon Theremin
 He is a Russian and Soviet inventor born in
Saint Petersburg, Russia
 He is an electrical engineer graduated from
Nikolayevska Military Engineering School
 Invented his instrument in 1917 by accident
 After a few years of research he invented his
musical instrument named after himself in
October 1920

5.  The purpose of this presentation is to
introduce the Theremin to people and better
understanding for this kind of instrument
 This report provides details the invention of
this instrument, the operating process,
playing technique, range and similarities and
differences for this instrument
 Hopefully, by presenting this unique
instrument, more people can appreciate the
beauty of Theremin

6.  The data collected for this report was mainly
based on two secondary sources, such as
internet and documentary. I also do some
research by video from youtube to know
about this report.

7.  Every instrument has particular discipline for
them to operate to produce sound
 Theremin produced sound by the interaction
of two radio frequencies
 The process is known as heterodyning

9.  The Theremin contains two antennas, vertical and
horizontal.
 The oscillator is a tube from first generation of
computer technology and the most important
part on Theremin because the oscillator
generates the wave to perform the heterodyning.
 Blue part on the diagram is a horizontal antenna
which control the volume of the pitch.
 The yellow part is a vertical antenna to control
the pitch.
 Combining the two waves of these part with two
different waves frequencies will generates a pitch
and can be amplified.

10.  It has about five and a half octave range for
classic Theremin
 The lowest pitch that Theremin can reach is E
on double bass
 For modern Theremin six to seven octaves

11.  It is a difficult to master instrument because it
has no fretboard or keyboard to be the reference
 The size of your hands, body and surrounding
influenced the electromagnetic process that
occur in Theremin
 The lower Pitch occurs when vertical antenna and
hand are about two feet away. On the other hand,
the left hand controls the volume
 The hand need to away about an inch above the
antenna to get the lowest volume and just a half
centimeter to get the loudest volume

12.  The Theremin has been developed by Leon
Theremin itself in the early 1920s
 After Leon Theremin developed the Theremin
on 1920s more modern developer take part
on this instrument including Robert Moog
 Robert Moog developed Theremin in his own
version
 The modern technologies change the
component in Moog’s Theremin

14.  “Space Controlled”
Classic Theremin Modern Theremin
Developed in 1920s Developed in 1950s
First computing generation system Third computing generation system
Heavy and big Small and compatible

15.  The Theremin is an unique instrument
 Invented from science
 The instrument doesn’t mark who we are, The
musical quality does

19.  How to Play a Theremin
http://electronics.howstuffworks.com/how-to-
tech/how-to-play-theremin2.htm
 Leon Theremin
https://en.wikipedia.org/wiki/L%C3%A9on_There
min
 Theremin
https://en.wikipedia.org/wiki/Theremin
 https://www.youtube.com/watch?v=9STWwl6viv
A
 The Theremin http://www.theremin-
saw.com/theremin.htm#where
 http://www.bbc.com/news/magazine-17340257