Theremin

The Technology Behind the Theramin

Patented by Russian inventor and physicist Léon Theremin in 1928, the theramin is an early, electronic instrument. What makes the instrument unique, however, is not only its one-of-a-kind appearance—the theramin is played More »

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Best Car models in 2012

Continued from – 10 Awesome Cars Launched in 2012 Continued in part III – Cars to watch out for 2012 The Surprisingly Affordable 2013 Chevy Camaro ZL1 For numerous years, car enthusiasts More »

VW-Golf-R

10 Awesome Cars Launched in 2012

Invest in the Powerful and Affordable 2013 Ford Focus ST Making its debut in the United States, the new Ford Focus boasts a 160 horsepower, direct-injection engine. The model has a five-speed More »

The Influence of African Drumming and its Instruments

Sub-Saharan African music exhibits a strong rhythm, exhibiting common characteristics in the numerous regions of this vast territory. Scholars refer to the like-minded musical phenomenon as profound homogeneity that forms one main system. These West-African rhythmic techniques that traveled across the Atlantic proved fundamental in the formation of modern-day, African-American music genres like blues, jazz, and hip-hop. Thus, African drumming rhythms remain critically important in popular music.

Although many sub-Saharan languages do not have words for “rhythm” or even “music,” drumming represents both the interconnectedness of people and the everyday fabric of life. Rhythms have specific meanings; for instance, cross-beats might symbolize challenging moments, while playing such music while fully on the ground represents one’s willingness to take on such emotional stress head-on.

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Sub-Saharan African drummers approach rhythm with syncopation and cross-beats, which are sustained and systematic polyrhythms where at least two distinct rhythmic phases, patterns, or figures are played at once. At the core of African drumming tradition, musicians use contrasting rhythms in the same framework of accents or meter. Such asymmetrical patterns are geographically and historically interrelated within the region.

Although African music generally relies on fast-paced, upbeat drumming across the continent, some tribes like the nomadic Maasai and the Township music in South Africa noticeably lack the instrument. Elsewhere, however, the drum signifies life and the heartbeat of a community.

Classified as membranophones, African drums are characterized by a skin, or “drumhead,” extended over the open end of a frame or shell. One well-known drum, the djembe, is a rope-tuned instrument covered with skin and played with the bare hands.  For the Bambara people in Mali, the instrument signifies peace and togetherness. With a shell carved of hardwood, the djembe typically boasts an untreated, goatskin rawhide.

The djembe produces a wide variety of sounds, making it a versatile instrument. Because the drum is relatively loud, the djembe can be easily distinguished, even in a large ensemble of percussion instruments. The Malinké people believe that a skilled drummer can make the instrument talk, meaning that the player tells an emotional story through the djembe alone. These drummers implement three basic sounds: tone, slap, and bass, which have medium, high, and low pitch, respectively. Such sounds occur as the player varies the striking technique and position. Masters of the djembe might achieve other sounds, although these are typically reserved for solo performances.

Another West-African drum, the talking drum, has an hourglass-shaped body covered by two skins. Connected by leather straps, these skins allow the player to vary the pitch by pressing the instrument between his or her arm and body. As the name suggests, these drums are designed to mimic speech; a skilled player can produce entire melodies and phrases.

Other aspects of African drumming, such as timekeeping, utilize instruments such as shakers comprised of woven baskets or the double bell made of iron that creates two different sounds. Even though each region of the continent has developed a different double bell style, its role as timekeeper remains relatively uniform.

The Instruments Used by the Microtonal Music Movement

By definition, microtonal music refers to any music using microtones, or intervals of a less than equally spaced semitone. The term also encompasses music that uses intervals not included in the Western system, where 12 equal intervals equate to an octave. Such music includes traditional Indian systems containing 22 śruti, Burmese and Thai music, Indonesian gamelan music, and African-American forms of jazz and blues. Today, the microtonal music movement has been popularized by electronic and rock creations.

Microtonal music has a rich history, dating back to ancient Greece. As an interpretation of Greek tetrachordal theory, the Italian Renaissance composer Nicola Vicentino experimented with microtonal intervals. Vicentino constructed a keyboard—known as the archicembalo—boasting 36 keys to the octave. In effect, Vicentino created a system of quarter-comma meantone.

Other prestigious composers also took note of microtonal music, writing work for choir and orchestra. Some scholars believe that this musical movement greatly influenced the piano compositions of Claude Debussy. In the Exposition Universelle of 1889, Debussy experienced a Balinese gamelan performance, which exposed the composer to non-Western tunes and rhythms. Numerous Debussy compositions for piano and orchestra focus on the instruments’ natural resonance with bell- and gong-like sounds and explorations.Image credit

The invention of the phonograph in the late 19th century further exposed composers to non-Western music, thus propelling the microtonal movement. For example, Julian Carrillo experimented with the violin in 1895, distinguishing 16 different tones. Carrillo eliminated the fourth violin string, resulting in 16 distinguishable notes between the G and A pitches. Carrillo donned this microtonal music Sonido 13, or the Thirteenth Sound. In addition to composing, Carrillo also wrote on the physics of music and music theory.

The 20th century boasted the continued evolution of microtonal music by composers. At Mills College, Lou Harrison created American gamelan orchestras. Likewise, American trumpeter and Big Band leader Don Ellis explored microtonal tunes. In fact, experimentation with microtonal trumpets dates back to the early 20th century, and surviving examples exist in numerous European museums. Relatively new explorations include microtonal wind instruments, such as the clarinet. Although composers began altering the clarinet in the mid-20th century to produce the desired notes, the application of microtones for the clarinet is largely unexplored.

Electronic music typically relies heavily on microtonal tones. In 1954, for instance, Karlheinz Stockhausen created the electronic Studie II using an 81-step scale. Ernst Krenek also experimented with microtonal electronic music in his Whitsun oratorio, where the composer implemented 13 tempered intervals per octave. Wendy Carlos utilized numerous microtonal systems in her music, most notably in the Beauty and the Beast album. Released in the mid-1980s, the album boasts alternate tuning scales invented by Carlos.

Microtonalism is also prevalent in modern-day rock music. This form of microtone music, known as the blue note, is also found in preceding blues music. To create the desired tone, the blue notes are flattened by a variable microtone. Digital synthesizers introduced in the 1980s and resultant, inexpensive synthesizer software have made exploring microtonal music more accessible and popular.

The Technology Behind the Theramin

Patented by Russian inventor and physicist Léon Theremin in 1928, the theramin is an early, electronic instrument. What makes the instrument unique, however, is not only its one-of-a-kind appearance—the theramin is played without being touched by the user. Because of the eerie sound the instrument produces, it has again gained popularity in the 21st century, used in suspenseful films and frequented by avant-garde, new music, and rock musicians.

The theramin does not require physical contact to play. Instead, the musician stands in front of the instrument, moving his or her hands near two metal antennas. The distance from one antenna determines the amplitude, or volume, and the distance from the other antenna controls the frequency, or pitch. Most frequently, the player’s left hand controls the volume and the right hand controls the pitch, although some performers reverse this setup. Some lower-end theramins employ a knob to control volume, having only one antenna that dictates the pitch.

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Although commonly referred to as antennas, these instrument elements do not send or receive frequencies; instead, they serve as plates in a capacitor. The theramin relies on the heterodyne principle to produce an audio signal. Here, the musician creates new frequencies by mixing or combining two frequencies.

The instrument also employs two radio frequency oscillators for its pitch circuitry. While one oscillator operates at a steady, fixed frequency, the other oscillator’s frequency is determined by the musician’s distance from the pitch-controlled antenna. The musician’s hand serves as a grounded plate, with the performer’s body acting as the connection to the ground. This grounded plate acts as part of a variable capacitor in a circuit that comprises the oscillator and determines the frequency of the instrument. The differing frequencies between the two oscillators at any given moment creates a different audio tone. As a result, the instrument produces audio signals, which are amplified and received by a loudspeaker.

For volume control, the musician’s other hand serves as the grounded plate for another variable capacitor. Here, the capacitor detunes a neighboring oscillator. After processing, the detuning changes the attenuation of the amplifier circuit. To regulate the volume of the instrument, the musician varies the distance between his or her hand to the volume control antenna.

Here is a visual of an artist playing a theramin

Using modern technology, circuit designers often simplify the theramin by avoiding the complex, two heterodyne oscillators. Instead, more recent theramin designs boast one pitch oscillator, which is designed similarly to and acts as the original instrument’s volume circuit. However, this approach fails to produce the low frequencies associated with a heterodyne oscillator. Improved alterations might employ two heterodyne oscillators to control both pitch and volume.

Used in concert music, film music, television, and even video games, the theramin has recently been employed in pop-rock music as well. For example, the Boston-based band the Loathers—formed in 1997—has released numerous records that feature up to four theramins on a single track, which is a first in pop-rock music.

The instrument also employs two radio frequency oscillators for its pitch circuitry. While one oscillator operates at a steady, fixed frequency, the other oscillator’s frequency is determined by the musician’s distance from the pitch-controlled antenna. The musician’s hand serves as a grounded plate, with the performer’s body acting as the connection to the ground. This grounded plate acts as part of a variable capacitor in a circuit that comprises the oscillator and determines the frequency of the instrument. The differing frequencies between the two oscillators at any given moment creates a different audio tone. As a result, the instrument produces audio signals, which are amplified and received by a loudspeaker.

Cars to watch out for 2012

Continued from – Best Car models in 2012

Part III of original article – 10 Awesome Cars Launched in 2012

The New, Sporty Ford Fiesta ST

Even though the vehicle might only be available as a 3-door hatchback, the new Ford Fiesta ST will improve cooling through an altered body design. The model boasts numerous other enhancements as well, including modified suspension for better turning, unique trim, speed-rated performance tires, and dual exhaust.

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Reportedly, the car maker experimented with the Focus ST 2.0-liter engine in the new vehicle, although the final product will not have this feature. For one, Ford is striving to differentiate its two high-performance hatchback models.

Ford will launch these similar vehicles at least six months apart in an attempt to emphasize the Fiesta. The automaker plans to market the Focus as its higher-end hatchback while giving the Fiesta a sportier feel. Reviewers anticipate that the new vehicle will be powerful, with a directly injected, turbocharged engine. While the market price of the vehicle is unknown, experts believe that the vehicle will cost approximately $23,000, placing it in direct competition with the Nissan Sentra and Civic Si.

 

Own an Iconic 2013 Ford Shelby GT500 Mustang

In direct competition with the new Camaro ZL1, the Ford Shelby GT500 has impressive features that outperform its counterpart. Some reviewers prefer the Ford to the Camaro because the Shelby exceeds the latter performance-wise. For one, the new Ford has been deemed the most powerful production vehicle available. The Mustang also beats the Camaro on both torque and horsepower while weighing 200 pounds less than the ZL1.

However, consumers can expect to pay more for this powerful vehicle. The Mustang, which can reach speeds exceeding 200 miles per hour, might cost significantly more than the Camaro, especially if buyers opt for enhancements. For this model, Ford offers an optional “Performance Package” that boasts a Torsen limited-slip and adjustable dampers. Additionally, the track package includes engine, rear drift, and transmission coolers.

This Mustang costs a cool $70,000, including the packages. By comparison, the Camaro is more economical for some, with a $54,995 sticker price.

 

The Revamped Corvette C7

Scheduled for release in late 2012, the Corvette C7 will boast an entirely new design. Currently, the models have had the same basic structure and look for the past 13 years. Reviewers still praise the current models due to their cost. For example, the vehicles offer Ferrari-like performance for approximately one-fifth of the price. In other respects, however, current Corvettes are increasingly dated.

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In an effort to revamp the model, the carmaker has added aesthetically pleasing exterior modifications such as a split rear window. The interior of the vehicle boasts vastly upgraded features that improve on the current, yet archaic, design. However, the strength and trademark of the model—its handling—will remain largely unchanged.

Experts project that the vehicle will have 400 to 450 horsepower, and consumers can expect to pay $50,000 for the new Corvette. For its crowning jewel vehicle, Chevrolet is taking measures to ensure that the model is more fuel-efficient.

 

 


Best Car models in 2012

Continued from – 10 Awesome Cars Launched in 2012

Continued in part III – Cars to watch out for 2012

The Surprisingly Affordable 2013 Chevy Camaro ZL1

For numerous years, car enthusiasts have yearned for a Camaro that can perform as well as its counterparts. The Chevy ZL1 vehicle boasts a Cadillac-inspired supercharged V-8 engine with 580 horsepower. Living up to its sports car reputation, the car top speed is around 180 miles per hour.

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The new Camaro has a fast pickup, going from 0 to 60 in only four seconds. Chevy has revamped the design of the model, noticeably revising both the front and rear dampers and antiroll bars. This convertible, also available in ragtop form, has been significantly modified. Nearly one-third of the vehicle’s parts have been changed.

Most appealing, however, the supercar is relatively affordable, with a starting price of $54,995. Chevy has successfully made their iconic model available to the masses by offering the vehicle at a price that more than one percent of customers can afford. In addition, the manufacturer is making its other Camaro models less costly.

 

How the 2013 Mini Paceman Differs from the Mini Countryman

As a concept vehicle, the 2013 Mini Paceman is basically a two-door coupe modification of the Mini Countryman. For instance, the new Mini stands just one inch lower and has the same front design with a only a slight grille variation. However, sources claim that the vehicle will soon enter production, leading experts to speculate how this model will differ from its counterpart.

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Unlike the Countryman, the Paceman will boast two doors instead of four. To further differentiate it from the Countryman, experts believe that the new Mini should have enhanced horsepower or ride significantly lower. The model will be bigger than the Mini Cooper S, but will boast all-wheel drive.

The manufacturer might also design this model to directly complete with the Subaru WRX by offering more all-road, rally-car capabilities. Enthusiasts believe that this is a more viable option, as the 2011 Countryman has participated in rally championships, reaching speeds over 300 miles per hour.

 

The 2013 Cadillac ATS is Designed to Outperform BMW

The new Cadillac ATS is strikingly similar to the BMW 3 series, which is no accident. From the exterior to the interior space, this vehicle is nearly a carbon copy of its competitor. The manufacturer specifically designed this car with a particular consumer in mind while ensuring that the ATS outperforms the BMW 3 series. Cadillac also hopes to avoid mistakes made by other carmakers—such as Lexus—that copied the look of BMW while falling short on performance.

In direct competition with BMW, Cadillac manufactured a lighter vehicle, weighing 3,400 pounds. The ATS has more engine options than its competitor, offering more “punch.” With impressive specifications, the vehicle outperforms the BMW 3 series. The Cadillac offers a V-6 engine with 320 horsepower, beating BMW by 20 horsepower.

Experts enthusiastically await the results of the ATS, anticipating how the carmaker’s lighter and sleeker vehicle competes with BMW. Customers can expect prices similar to the 3 series, perhaps minus markups.

 

10 Awesome Cars Launched in 2012

Invest in the Powerful and Affordable 2013 Ford Focus ST

Making its debut in the United States, the new Ford Focus boasts a 160 horsepower, direct-injection engine. The model has a five-speed manual transmission and variable valve timing.

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However, prospective buyers should instead wait for the 2013 Focus ST. Available in the first quarter of 2012, this model is more powerful than its abovementioned counterpart. For one, the vehicle boasts a six-speed manual transmission and a turbocharged, or “EcoBoost,” engine similar to larger Ford models, such as the Explorer and Edge. In addition, the car has a strong pickup—250 horsepower—that equates the vehicle to the MazdaSpeed3 and exceeds the performance of the Volkswagen GTI.

To support the increased horsepower, Ford will equip the Focus ST with stronger breaks, a firmer suspension, and larger tires. Consumers can expect a starting price of $25,000, which is relatively affordable when one considers the power and enhanced features of the vehicle.

 

“Go Green” by Purchasing a 2013 Mitsubishi Evo XI

In an effort to discontinue its gas-guzzling vehicles, Mitsubishi has launched more ecofriendly models such as fully electric and gas-electric hybrids. This “go green” effort aims to meet increasingly stringent emission standards.

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Rumors claim that even the Lancer Evolution XI, commonly known as the Evo XI, will be more environmentally friendly. The manufacturer hopes to maintain the high performance of the vehicle while utilizing some of the technology behind the upcoming electric city car. This “green” Evo will boast a turbo-diesel, diesel-electric hybrid, or gas engine.

Even with these modifications, consumers can still expect a powertrain vehicle. The car can go from 0 to 60 mph in about five seconds while receiving enhanced fuel economy when compared to the current Evo model. Some enthusiasts believe that the vehicle may even be capable of running on battery power alone. A larger body and refined features place the new model on more equal ground with rival makes like Audi.

 

Evaluating the Economical 2013 Toyota Prius C Concept

At an annual auto show in Detroit this year, Toyota recently unveiled a completely new line of Prius models. The Prius C Concept drew particular attention. While Toyota claims that this vehicle is still a concept, enthusiasts believe that the compact, sporty hatchback vehicle will soon arrive.

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Experts believe that Toyota will retain these design elements for the “fun to drive” Prius C. Not only will the car be more compact, but the vehicle will also be more economical than the current Prius range. The car promises taunt handling with an affordable price—under $20,000. Aside from electric cars, Toyota believes that this model will have the best mileage for any hybrid, averaging 50 miles per gallon.

Motivated by a 1.5 liter four and an electric motor, this vehicle boasts impressive specifications, delivering up to 99 horsepower at peak. The hybrid aims to deliver both innovative technology and a vehicle ideal for city driving.

 

Experience the Unique Volkswagen Golf R

Available in early 2012, the Volkswagen Golf R is already creating buzz. For one, reviewers praise Volkswagen for staying true to its brand. The manufacturer has shied away from larger, Buick-like sedans in favor of enhanced, unique style.

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Based on expert opinions, the Golf R promises to deliver classic Volkswagen style and power to the United States. This all-wheel drive vehicle has a six-speed gearbox and 280 horsepower. The company plans to introduce two different body styles for the new vehicle—two-door and four-door—adding to its competitiveness with the three-door Mini Paceman.

Experts estimate that the new vehicle will cost consumers around $32,000. However, the Gold R boasts numerous improvements over the R32. It will have better brake rotors, and 20 percent better fuel efficiency than the older model. This compact vehicle promises more aggressive handling and stability with the equivalent of “track setting.” The car also comes equipped with a sport exhaust.

 

Continued in part II -  Best Car models in 2012

Read more in part III – Cars to watch out for 2012

Jim Rock Reloaded

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