Moog etherwave owner manual
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itself. Plug the round three-pin 'DIN' connector on the adapter cable into the mating power socket on the back side of the ETHERWAVE. (That's the side opposite the control panel and the player.) Then plug the adapter itself into a grounded power receptacle, or into a three- wire extension cord which provides a good ground connection. The ground connection stabilizes the ETHER-WAVE's operation. d) Connecting the amplifier-speaker: The ETHERWAVE may be used with a wide variety of musical instrument, stereo, or public address amplifier systems. The nominal level of the ETHERWAVE's audio output is one-half volt RMS and the nominal output impedance is 2.4 Kilohms. We suggest a small but high-quality portable 'keyboard amplifier' of the sort that synthesizer players frequently use for practicing. Use a shielded audio cable with a conventional 1/4" phone plug on one end, to be plugged into the ETHERWAVE's audio out jack. The other end of the cable should be equipped with whatever kind of plug your sound system requires, and should be plugged into a jack labeled line in, instrument , or aux on your sound system. Do not plug it into a microphone or guitar input, as these inputs are designed for much weaker audio signals. e) Setting the tuning adjustments: Turn on both the ETHERWAVE and your sound system. Set the loudness or volume control on your amplifier about one third of the way up. Touch the pitch antenna of the ETHERWAVE and slowly rotate the ETHERWAVE's VOLUME tuning knob clockwise. A high note will be heard. At one setting of the VOLUME tuning knob, the volume will be at a maximum. Starting from this setting, turn the VOLUME tuning knob counterclockwise until the loudness of the tone begins to decrease. Now bring your left hand near the volume antenna. Note that the tone's loudness decreases smoothly, and finally becomes silent when your left hand is two to three inches from the volume antenna. Then remove your left hand from the volume antenna but, still touching the pitch antenna, adjust the volumecontrol on your sound system so that the tone is as loud as you will want it to be. Now remove your right hand from the pitch antenna. Turn the ETHERWAVE's PITCH tuning knob fully counterclockwise. You will hear a high pitch. Now slowly turn the PITCH tuning knob clockwise. You will hear the tone's pitch go down. When it is about an octave below middle C, step back from the instrument. You should hear the pitch decrease further until the tone stops completely ('zero beat'). Adjust the PITCH tuning knob carefully so that, when your right shoulder is about 24" from the pitch antenna and your right hand is down at your side, the tone's pitch is audible but lower than two octaves below middle C. (Two octaves below middle C is the lowest note on a cello, and slightly below the lowest note on a guitar.) PLAYING THE ETHERWAVE THEREMIN Pitch and volume of the ETHERWAVE sound is controlled by the free movement of the player's hands in the space in the electric fields which surround the two antennas. Changes in pitch are produced by moving the right hand nearer to or farther away from the pitch antenna. Moving the right hand nearer to the antenna raises the pitch; moving it away lowers it. Changes in volume are produced by moving the left hand nearer to or farther away from the volume antenna. Bringing the hand nearer the antenna weakens the sound; moving the hand away from the antenna strengthens the sound. Since any moving body will influence the theremin's pitch and volume, it is important that only the player be near the theremin when he is performing. Other people should be at least four to six feet from the pitch antenna. Timbre, or quality of the tone may be varied by changing the settings of the WAVEFORM and
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BRIGHTNESS knobs. The WAVEFORM knob adjusts which harmonics are strong and which are weak, while the BRIGHTNESS knob adjusts the overall amount of harmonic content. Correct Playing Position: Position yourself slightly left of center of the instrument. When your right arm is fully extended, your knuckles should just touch the pitch antenna. The right hand is moved horizontally toward and away from the pitch antenna. The left hand is moved vertically over the volume antenna. The PITCH and VOLUME tuning adjustments should now be checked. Without moving your feet, place both hands at your side and stand erect. The instrument should produce a very low-pitched tone, or be completely silent ('zero beat'). Now bring your right hand up to your shoulder. The pitch should be about one to two octaves below middle C. If this low note is not heard, then adjust the PITCH knob until the desired condition is obtained. Note that the PITCH knob is a tuning adjustment. It sets the distance that you have to stand away from the pitch antenna in order to obtain zero beat. When you turn the PITCH knob clockwise, the distance is reduced, thus compressing the distance between musical intervals. Check the volume adjustment as follows: Place your left hand eight inches above the volume antenna. This should produce a noticeable reduction in the loudness of the tone. If it does not, then turn the VOLUME knob counterclockwise until the desired effect is obtained. On the other hand, turning the VOLUME adjustment knob too far counterclockwise will prevent you from producing loud tones. Note that the ETHERWAVE's VOLUME knob is a tuning adjustment. Its purpose is to adjust how the instrument's volume changes as your left hand approaches the volume antenna. This knob is not a 'volume control'. That is, it does not simply make the tone louder or softer. It should not be used to set the instrument's maximum volume. The volume control on your sound system is used for that purpose.You will rapidly develop a feel for these adjustments. After a few practice sessions, you will be able to tune the theremin rapidly and accurately. Techniques of practicing: Like any expressive musical instrument, the theremin takes some practice. Start with the following simple exercises: 1. Stand slightly left of the center of the instrument, with your right shoulder about 24" from the pitch antenna. Relax your wrists. Think of a note and hum it to yourself. Then move your right hand toward the pitch antenna until the theremin pitch coincides with what you're humming. Now hold the note. This is not as easy as it sounds, but is an important technique to learn. You will find at first that it is actually hard to stand still, but a few hours' practice will work wonders. 2. Hum two different notes, one after the other. Find the first note on the theremin, hold it, and then slowly glide to the second. 3. Repeat the above exercise, but bring your left hand near the volume antenna while your right hand glides from one note to the next. Move the left hand slowly at first, and then more rapidly as you learn to move your left hand independently of your right. This exercise teaches you to 'feel' where the notes are, and to impart expressive dynamics. 4. While playing a note, introduce a vibrato by moving your right hand back and forth from your wrist, several times a second. Concentrate on making the vibrato even and steady. The above exercises will give you basic skills of theremin playing: finding notes, playing intervals, articulating notes, and introducing a vibrato. With these basic skills, you can play slow melodies. Practicing regular scales and arpeggios will increase your proficiency. Focus on accuracy of pitch and precise control over dynamics.