Color representation on a computer


First, let’s consider how colors are expressed on the computer screen. A computer screen is like a table with vertical and horizontal units of pixels. The pixels that are the smallest units that make up this computer screen are further decomposed into red, green, and blue lights. It is possible to express all the colors by mixing the three colors of “Light’s three primary colors” with this three colors of red-green-blue. The three primary colors of light are called “RGB color model” by taking initial letters of red, green and blue. The computer display adjusts the brightness of each RGB to express the color for each pixel.

It should be noted that the RGB color model is different from mixing colors with paint. The three primary colors of light are said to be “additive color mixing”, and colors are added when mixed. When RGB is added at maximum brightness, the mixed color results in white. On the other hand, color mixing of paint is called “subtractive color mixing” and colors are mixed by blocking the original light. Therefore, the three primary colors that are the basis of composition are also made up of cyan, magenta, and yellow, unlike light. The ink’s three primary colors are called “colorant’s three primary colors,” taking the initials of the colors and abbreviated as CMY. In the case of actual printing, black ink (Key Plate), which expresses more natural colors, is also added, and it is called “CMYK”.

Today’s typical displays can represent 24-bit color information per pixel. This 24-bit information is divided into three equal parts, and the gradation of color is assigned to each of RGB by 8 bits. A bit is a value represented by a binary number such as 0 or 1. In the case of 8 bits, it means that the information of 00000000〜1111111 can be handled in a binary number. Converting this into a decimal number we are normally familiar with results in 0-255, meaning that it can represent 256 levels of gradation including 0. Since each RGB can represent 256 gradations, the number of colors that can be expressed as a result of the color mixing is 16,777,216 (256 ^ 3 or 2 ^ 24).


What is openFrameworks?



 If you translate the name openFrameworks directly, you can interpret it as “an open framework”. First of all, consider this word “framework”. The framework is generally understood as a “framework” or “mechanism”. However, when we use the term framework in the software area, we mean software that brings together frequently used functions when developing an application and that functions as a basis for application development. In other words, the framework is a framework that allows you to re-use frequently used general-purpose functions and concentrate on developing only the parts you need.

Various frameworks depending on the application. Frameworks are developed and used in various fields, such as frameworks for manipulating databases and frameworks for developing web applications.

openFrameworks is a framework that specializes mainly in producing interactive content and media art. Many complicated processes are involved in producing multi-contents, such as 2D and 3D figures and drawings, animations, sound recording and playback, video capture and playback, mouse and keyboard interactions, network usage, etc… You have to spend a lot of effort to get to the core part where you want to express your project. However, by using openFrameworks, most of such troublesome tasks can be realized by calling simple instructions, and it is possible to concentrate on more creative parts. With the power of openFrameworks, it is possible to create media artworks and interactive designs much more easily.

openFrameworks can be run on Mac OS X, Windows, Linux, and it is also possible to export a project as an iPhone / iPad application or an Android application.

When invited to an event live

First, let’s see how it behaves when invited to an event live. As it is “the key to ascent”, you must  take care not to fail.

Once you have an offer to live the event, you will first check the schedule.

No matter how nice the invitation is, you can not participate unless the schedule is open. Also, check the schedule before and after as well as the day. If there are important shows before and after, it may be tough for the artist’s schedule, and it is better to refrain from participating in the event to avoid diversifying the audience.

Also, although you are free, you need to write a lot of songs during that period, and if you have to concentrate on production, you’re going to get it out, but you can’t get it out. In other words, if you want to gain more live experience with new artists, or if you want to perform new songs with a certain artist, or want to spread it in a live location, you will naturally receive an offer. The point is not only the schedule but also the situation and the timing of the artist is related to the schedule.

You also need to consider the merits and demerits of the appearance of the event.

Events that come in a lot of people, events with artists who are popular with co-stars, events with brand power, etc. have advertising effects and promotion effects when they come out. Also, by participating in such an event, you can expect the artist to look better.

Another is the merit of money. It is a part that “If you go to the event, you will earn money”, such as a good gallery, product sales are very likely to be sold, and chargeback can be expected. In the case of a goal, we may say something like “sales”. If you are a reasonably popular artist, you may decide to participate in the event as it is purely profitable, not with or without promotional effects.

Besides that, we need to think about relationships. You do not want to refuse if it is an invitation from the indebted person, and it may be possible that there will be good things if it goes out to the event. There are people in the scene and music industry who are said to be key persons, and if you are inviting from there, it is better to perform. With such a relationship, whether it is positive or backward will change.

If the timing or conditions, etc. match and perform, it is good with “by all means!”, But if you refuse, the other party will be disappoint. Therefore, it is necessary to consider how to decline carefully.

It is good to say something like “This time did not meet the timing, but please invite me again. Next time please!” It is a kind of word. The Music business is related to timing. Even if you think that “the merits of this event are not for me”, if the timing changes, the merits/demerits will also change. In such a flow, it may be time to meet what each other is seeking. To be honest, you have a clear idea that you do not feel the merit of appearance, but it is my idea that it is better not to ruin the relationship that may come over sometime.

The music scene is established by the relationship between people and people, so I would like to cherish the horizontal connection and get a chance.

What is the BWV number?


As Mozart’s works have numbers beginning with “K”, Bach’s works have numbers beginning with “BWV”. These were all given to the individual works by the scholar who made an inventory of their works, and a number to be referred to as a reference number.

Mozart’s “K” stands for “Kechel” and is named after Köchell who has cataloged Mozart’s works, and Bach “BWV” is an abbreviation for “Bach Werke Verzeichnis” and this is Wolfgang Schmieder. The first edition was published in 1950.

At that time, Bach works had been said to have remained 1080 songs, so BWV numbers were also said to have 1080 songs left, so BWV numbers were up to 1080, but then research progressed, and the currently published version Then the BWV number is attached to 1120 songs. Depending on future research, there may be more possibilities.

How to operate indies label


There are many requirements other than music for business owners. To operate the indies label, it is not something that you should only listen to music or create one. You also have to calculate the cost of producing CDs, and you need to do market research. You also have to do a lot of clerical work that is not directly related to music, such as negotiations with distributors, contract checks, and copyright negotiations.

You only have to play your favorite music, but you can not neglect business activities to maintain and maintain the label. To make a high-quality sound source, it may be more than the budget originally thought. Whether you pursue art or business is your freedom, but if you are pursuing quality until you are convinced, the CD will not be completed no matter how long it will cost money. It may be.

In freedom, it is also required of indies label owners to think about profitability to some extent. Also, a musician who is just working on music is disqualified as a manager. Expanding your perspective to fields other than music, adding an antenna to various information, and having an interest in it lead to the creation of music that is acceptable to people. It is an important requirement to reflect the knowledge of other fields in music. Moreover, it is necessary to focus on new music distribution, and it is also important to collect information and analyze how CD sales methods will change in the future.

How to evaluate social media truly

social-media-1795578_1920 The inability of management to properly understand the characteristics of social media, including YouTube, is a major factor hindering the development of a comprehensive Internet strategy. Then, what kind of criteria should SME managers evaluate and work on social media that appear one after another? We will compare three representative social media, YouTube, blog, and Facebook from the following three perspectives.

(1) Reflection on Google search results

(2) The spread of the number of users

(3) User stay time

 It can be said that the strategy that SMEs should take is to compare social media from these three points of view and to explore how to make use of its characteristics.

(1) Reflection on Google search results with YouTube, Facebook, and blogs, there are some differences in reflecting Google search.

 Simply put, while YouTube and blogs evaluate the keywords used for posting time and article titles on Google search, Facebook posts information by logging in only by users who have acquired an account. Due to the nature of the media being browsed, in particular, the “personal wall” where users are eagerly disseminating information is not reflected in Google search. The effect of Google search on Facebook is limited to the title of the Facebook page and the text on the event announcement page.

 First of all, is the information that you are sending on social media is “the information that you want to reflect in Google search” or “the information that is sent  to others even if it is not reflected in Google search.” It is necessary to properly distinguish and post. Working blindly without understanding the nature of social media, such as “I want to do Facebook because everyone around me is doing”, or ” I have to do new social media, such as Instagram. ” Things lead to wasted time. If you put on YouTube or a blog and the title of the posted video or article itself is reflected in Google search, it is necessary to select and set appropriate keywords for the title as well as the content. YouTube, blog titles need a strategy.

(2) The spread of the number of users

 No matter how good the characteristics of social media, if there is no concentration of users in the first place, it will not be effective. You also need to be aware of what kind of market deficit social media is or is perceived by the market. According to the “2013 Information Communication White Paper” announced by the Ministry of Internal Affairs and Communications, the Internet users in Japan are 96.52 million, and 80% of the whole population will use the Internet, excluding infants and old people It can be said that most people use the Internet. Among them, it can be said that YouTube is used by about 40 million people a month. On the other hand, Facebook has 24 million users and 27 million blogs. However, for blogs, it is the total number of blog creators, and when it comes to “blog market” including blog readers, it may be a bit more.

 However, the figure shows that YouTube boasts an overwhelming number of users. Although there are not many video contributors overall, many internet users devote most of their Internet connection time to watching YouTube, and YouTube will continue to gain citizenship in the country as well. It will be. Also, there is no difference that Facebook and blogs are media with a large number of users, and in particular, Facebook is not evaluated on Google search, but it seems to be a medium that exerts great power as a place of information diffusion.

3) User stay time  

 Facebook’s average stay is 208 minutes a month. On the other hand, YouTube has a survey of 340 minutes and a blog of 62 minutes. Depending on the time of measurement and conditions of the survey, I think that there will be differences, but access is generally via social media, and from that, there will be a minimum of about one minute of the stay. With blogs that are text- and image-oriented, there is no time to stay there. Also, YouTube tends to increase its stay time by displaying and playing related videos. In the future, not only video viewers but also more posters will be added, video content will be enriched, and other functions will be expanded. As a result, it is expected that YouTube’s stay time will further increase. SMEs should make use of the features of their social media, work on each other, eventually expand their exposure on the Internet, and work on mutual strategies that lead to the acquisition of responses.

South American and Caribbean Music


The region, known as Latin America, brings together the cultures of the indigenous people and blacks brought up as slaves and has created several attractive musician styles.

Manbo (Cuban)
Mambo is Spanish, meaning fine refine and repeated passages. It takes the form of a big band and uses the horn section as a rhythm instrument.

Samba (Brazil)
Popular music representing Latin music, born in Brazil. Music that a fine rhythm is inscribed in the spacious second night. Music with a passionate dance found at Rio carnival etc.

Reggae (Jamaica)
In the 1960’s Jamaica, based on rhythm & blues and jazz, unique music called “Ska” of upbeat was born. Based on that, around 1970, a reggae featuring intense after-beat was born. There is a message that calls for a return to Black’s mother country Africa, and there were strong political and religious factors in the early days. Currently, dancehall reggae, Lovers rock, British reggae etc. are diversified.

Tango (Argentine)
It is a form of popular music or dance music and is said to have been born in the late 19th century near Buenos Aires. Passionate music that creates intense rhythms with bandoneons, violins, pianos and other Western instruments, and the songs and dances are united. In Japan, Tango changed over Europe is called Continental Tango, and the current one is called Argentine Tango.

European music


European music is created by combining classical music by nobles, traditional music handed down by locals, Islamic, and gypsy cultures.

It is also the basis of music prospering around the European court, contemporary music, and music theory. Developmental music, baroque music, classical music, romantic music, opera, etc., has been developed in various ways by age, style, music, music style, and has been passed down to the present age. In addition, after two world wars, contemporary music was born as something that defeats the old music format, and the methodology is widely spread to other genres such as accidental music, music concreting, electronic music, environmental music (ambient), minimal music, etc. It has an impact.

Irish Folk (Ireland)
Folk music based on Irish tradition. It is also a source of American folk songs and countries. In the 1960’s Ireland, there was a move aspect to restore the traditional Irish folk.

Liverpool Sound (Liverpool, UK)
In the early 1960s, bands from all over Britain went to the United States. From 1964 to 1965, about half of Billboard’s hit charts were occupied by British bands. In Japan, British bands that appeared at this time are collectively called Liverpool Sound.

British Beat (London, UK)
A generic term for the 1960’s British beat group. At first he played rock and roll, rhythm and blues covers, but his originality gradually deepened and British beat was formed.

Punk Rock (London, UK)
In New York in the 1970s, the backlash of commercialized and formalized rock created a style of emphasizing anti-social and political lyrics and doing radical fashion with frantic beats. That sparked London. The rough sound of punk rock has a great influence not only on music but also on fashion and ideas.

Chanson (Paris, France)
A popular song created in Paris, France. Chanson does not refer to music of a specific genre in the meaning of “song” in French, but in the world, it imagines music consisting of “melody like to talk”.

Canzone (Italy)
In French, “Song” is Chanson, but in Italian it is “Canzone”. In Japan, in Japan, it tends to imagine the Neapolitan people who sing imposingly as Canzone, but it refers to all popular Italian music. The Italian song popular in Japan from the 1960s to the 1970s is sometimes called Canzone.

Flamenco (Spain)
Flamenco is a performing arts born in the Andalusia region of southern Spain, brought by gypsy (people of exile). Based on the song, with the addition of Gita and dance, it is said that in the 19th century, it became a style that can be seen today. The guitar used is a unique scale (gypsy scale) and the guitar itself is also special.

North American Music


It can be said that the origin of popular music in the world is in North America. While focusing on New York, new music has been created throughout the United States, leading the world.

Rockabilly (Tennessee)
The birthplace of Memphis, Tennessee. It features a dark rock and roll style with a country colour. When black music such as blues and gospel was active, it could be said that it was used as white music, and it became a popular target for young people, along with its fashion, with a performance style that shines on the stage.

Modern Jazz (New York)
Originated in the 1940’s in New York called “Bibap”, it was originally a jazz song incorporating ad libs, and swing jazz became a mannerizing, and it was supposed to be born after a jam session after the closing of a live house and a restaurant. Ru.

Gospel (Southern)
It was sung at church gatherings in a style that should be called an American black music prototype. Since the 1930s, it has also been used as a spiritual foundation for the black community, sometimes as a companion-to-peer code. At first it was only singing voice, but eventually it began to use instruments.

Salsa (New York)
“Latin American music” which became a big boom in the 1970s. It occurred mainly in Hispanic immigrants in New York in the 1960s and spread to blacks. Salsa is a spice used in Central and South America. Introduced the taste of rock and jazz, it spread around the world.

Folk song (New York)
Also known as folk music. Originally pointed to the blues of folk songs and blacks. It is mainly a protest song. Typical accompaniment styles use acoustic guitars and banjos, not electric guitars.

Rhythm & Blues (R & B) (New York)
In New York in the 1940s, black music began with jazz, blues and gospel, and developed into popular music for the masses. There was no clear distinction between rock and roll. After that, rhythm & blues developed into soul music and so on.

Soul Music (New York)
Seoul or soul music is basically music developed from the 1950s to the early 1960s. As time went by, Rhythm & Blues came to call the widely developed and expanded style soul music.

Hip Hop (New York)
A style created by the next generation of young people, who has developed rhythms & blues that were born and developed in the 1940s. It refers to soul music born in New York in the 1980s. In the club scene, black street culture was spotlighted along with unique fashions such as raps with good rhyme, DJing with scratching of analog records, and break dance.

Surf music (California)
From the late 1950s, there was a surf boom on the American West Coast. The party music of the surfers developed.

Psychedelic Rock (San Francisco)
In the mid 1960’s, trip music influenced by the primary color art “Psychedelic” with hippie ideas as the background. The hallucinations obtained by Druck were introduced into the elements of music, and it was tried to express distinctive visual images with music. In the late 60’s of the flourish flower movement, waves of psychedelic rushed to the whole world, and many artists have left works of this genre.

Fork Rock (Los Angeles)
Born in Los Angeles, California in the mid 1960’s. A folk musician changes the guitar to electric and locks it. The singer-songwriters at the time used the song as their repertoire, singing with harmony, and playing electric guitars in addition to conventional instruments. Folks were characterized by strong social lyrics, but they introduced rocking techniques to broaden the range of expressions and increase communication to the audience.

Asian music


Asian music is being reviewed worldwide. The size of the market, which accounts for 40% of the world’s population alone in two countries, China and India, and economic development seem to be the background. Indonesia and India are one of the world’s music centers.

Kecak (Indonesia)
Kecak is a touristic dance art performed in Bali, also known as monkey dance. Several tens to a hundred men with shirtless shirts and waistbands appear, and form a circle with several circles of overlapping circles. They are called “kecha” because they sound like a “chuck” or “chuck” that mimics the animal’s call and that they sound like a 16 beat rhythm called “kecak kecak kecak kecak”.

Dan Dud (Indonesia)
Dance music popular with young people in Indonesia. A unique roll rhythm music that combines Arab music, reggae, and rock. It’s an Islamic culture, with a drum called Surin and a drum called Gundang.

Indian film song (India)
India is the world’s largest movie country. In a movie tailored to a musical, an actor does not sing, and a singer called playback of a film song specialist plays back.

Kawali (Pakistan)
Music created as a result of the fusion of Indian culture and Turkish-Iranian traditions. With the growing interest in Islamic culture, attraction is re-recognized. It is derived from the Arabic “Kaul (speaking)” and originally sung at the religious ceremonial occasion of Islamic mysticism (sufism). With clapping as an accompaniment, we proceed in an impromptu dialogue between the advocate and the recursor.

Homey (Mongolia)
It is also called fumy. Among the music transmitted among the Mongolian people, it is the name of the singing method transmitted to the Western Mongolian tribes, and it simultaneously utters a roaring bass and a high-pitched whistle. The word “Mongolian” means “pharynx, animal’s abdominal fur”.