Question: Who produced the documentary film Moog in 2004, about a pioneer of sound using electronic circuitry and digital devices?

full_context: Document 1: Electric guitar: An electric guitar is a fretted stringed instrument with a neck and body that uses a pickup to convert the vibration of its strings into electrical signals. The vibration occurs when a guitarist strums, plucks, fingerpicks, or taps the strings. It is sensed by a pickup, most commonly by a magnetic pickup that uses the principle of direct electromagnetic induction. The signal generated by an electric guitar is too weak to drive a loudspeaker, so it is plugged into a guitar amplifier before being sent to a loudspeaker, which makes a sound loud enough to hear. The output of an electric guitar is an electric signal, and the signal can easily be altered by electronic circuits to add "color" to the sound or change the sound. Often the signal is modified using effects such as reverb and distortion and "overdrive", with the growling sound of the latter being a key element of the sound of the electric guitar as it is used in blues and rock music.
Document 2: Electronic musical instrument: An electronic musical instrument is a musical instrument that produces sound using electronic circuitry and/or digital devices. Such an instrument sounds by outputting an electrical, electronic or digital audio signal that ultimately is plugged into a power amplifier which drives a loudspeaker, creating the sound heard by the performer and/or listener.
Document 3: Minimoog: The Minimoog is a monophonic analog synthesizer, invented by Bill Hemsath and Robert Moog. It was released in 1970 by R.A. Moog Inc. (Moog Music after 1972), and production was stopped in 1981. It was re-designed by Robert Moog in 2002 and released as Minimoog Voyager. In May 2016, Moog announced a limited-run "pilot production" reissue of the Model D, to be launched at Moogfest. It went into full production shortly afterwards, but Moog Music announced on June 27, 2017 that it was ending the production run of the Model D reissue.
Document 4: Moog synthesizer: Moog synthesizer (pronounced ; often anglicized to , though Robert Moog preferred the former) may refer to any number of analog synthesizers designed by Robert Moog or manufactured by Moog Music, and is commonly used as a generic term for older-generation analog music synthesizers. The Moog company pioneered the commercial manufacture of modular voltage-controlled analog synthesizer systems in the mid 1960s. The technological development that led to the creation of the Moog synthesizer was the invention of the transistor, which enabled researchers like Moog to build electronic music systems that were considerably smaller, cheaper and far more reliable than earlier vacuum tube-based systems.
Document 5: Robert Moog: Robert Arthur "Bob" Moog ( ; May 23, 1934 – August 21, 2005), founder of Moog Music, was an American engineer and pioneer of electronic music, best known as the inventor of the Moog synthesizer.
Document 6: List of electronic music genres: This is a list of electronic music genres, consisting of genres of electronic music, primarily created with electronic musical instruments or electronic music technology. A distinction has been made between sound produced using electromechanical means and that produced using electronic technology. Examples of electromechanical sound producing devices include the telharmonium, Hammond organ, and the electric guitar. Purely electronic sound production can be achieved using devices such as the Theremin, sound synthesizer, and computer. Genre however is not always dependent on instrumentation.
Document 7: Moog (film): Moog is a 2004 documentary film by Hans Fjellestad about electronic instrument pioneer Dr. Robert Moog. The film features scenes of Dr. Moog interacting with various musical artists who view Moog as an influential figure in the history of electronic music.
Document 8: Electronic drum: An electronic drum, also known as digital drums or digital percussion, is a modern electronic musical instrument, a special type of synthesizer or sampler, primarily designed to serve as an alternative to an acoustic drum kit or other percussion instruments. An electronic drum consists of an electronic or digital sound module which produces the synthesized or sampled percussion sounds and one or more electric sensors to trigger the sounds. Like regular drums, the sensors are struck by drum sticks or by the hands (depending on the type of drum pad) and they are played in a similar manner as an acoustic drum kit.
Document 9: Moogfest: Moogfest is an annual, multi-day music, art and technology festival. The event was previously held in Asheville, North Carolina, where the late Robert Arthur "Bob" Moog, the inventor of the Moog synthesizer and founding father of electronic music, spent the last 30 years of his life. Moog spoke at the event in 2004. Past performers who have played at the festival include Kraftwerk, Devo and Brian Eno. It is held in May, on the closest weekend to Moog’s birthday (with the exceptions of Moogfest 2006 to 2014).
Document 10: Audio electronics: Audio electronics is the implementation of electronic circuit designs to perform conversions of sound/pressure wave signals to electrical signals, or vice versa. Electronic circuits considered a part of audio electronics may also be designed to achieve certain signal processing operations, in order to make particular alterations to the signal while it is in the electrical form. Additionally, audio signals can be created synthetically through the generation of electric signals from electronic devices. Audio Electronics were traditionally designed with analog electric circuit techniques until advances in digital technologies were developed. Moreover, digital signals are able to be manipulated by computer software much the same way audio electronic devices would, due to its compatible digital nature. Both analog and digital design formats are still used today, and the use of one or the other largely depends on the application. The following is a partial list of audio-related circuits/techniques/devices:
Document 11: Electronic music: Electronic music is music that employs electronic musical instruments, digital instruments and circuitry-based music technology. An electronic musician is a musician who composes or performs such music. In general, a distinction can be made between sound produced using electromechanical means, such as violins and drums, and that produced using electronic technology. Electromechanical instruments include mechanical elements, such as strings, hammers, and so on, and electric elements, such as magnetic pickups, power amplifiers and loudspeakers. Examples of electromechanical sound producing devices include the telharmonium, Hammond organ, and the electric guitar, which are typically made loud enough for performers and audiences to hear with an instrument amplifier and speaker cabinet. Pure electronic instruments do not have vibrating strings, hammers, or other sound-producing mechanisms. Devices such as the theremin, sound synthesizer, and computer can produce electronic sounds.
Document 12: Moog Source: The Moog Source is a monophonic Z80 microprocessor-controlled analog synthesizer manufactured by Moog Music from 1981 to 1985. The Source was Moog's first synthesizer to offer patch memory storage. The design was also the first (and only) Moog synthesizer to feature a flat-panel membrane keyboard to replace the standard buttons, knobs and sliders, along with multihued panel graphics that were very different from anything Moog offered at the time. Sound wise it is considered to sound more like the original Moog Minimoog than any other synthesizer made by Moog and was introduced as its replacement. Though state-of-the-art at the time, the membrane panels may malfunction after extended use if one uses fingernails or abuses the panel. The membrane panel actually only needs a light touch and will usually remain reliable if not abused.
Document 13: Electric instrument: An electric musical instrument is one in which the use of electric devices determines or affects the sound produced by an instrument. Electric musical instruments are an example of electric music technology. It is also known as an amplified musical instrument due to the common utilization of an electronic instrument amplifier to project the intended sound as determined by electric signals from the instrument. Two common types of instrument amplifiers are the guitar amplifier and the bass amplifier. This is not the same as an electronic musical instrument, like a synthesizer, which uses entirely electronic means to both create and control sound.
Document 14: Touch the Sound: Touch the Sound: A Sound Journey with Evelyn Glennie is a 2004 German documentary film directed by Thomas Riedelsheimer about profoundly deaf Scottish classical percussionist Evelyn Glennie. In the film Glennie, who won a Grammy Award in 1989, collaborates with English experimental musician Fred Frith and others, and explains how she perceives sound. The film appeared at over 20 film festivals across the world, and won several awards, including "Best Documentary" at the 2004 BAFTA Awards, Scotland.
Document 15: Gershon Kingsley: Gershon Kingsley (born Götz Gustav Ksinski; October 28, 1922) a contemporary German-American composer, is a pioneer of electronic music and the Moog synthesizer and founder of the First Moog Quartet, as a partner in the electronic music duo Perrey and Kingsley, and writer of rock-inspired compositions for Jewish religious ceremonies.
ground_truth: Hans Fjellestad