ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Concept for MIDI accordions

Updated on November 26, 2011

An invention for a MIDI accordion.

I played an accordion years ago, I found it at a thrift store, it only cost twenty dollars and it was the only acoustic instrument I've ever played (I usually play synthesizers). Recently, I made up an invention for a MIDI accordion. Actually, the idea of MIDI accordions is not new. Some companies have actually made accordions equipped with MIDI. The illustration above shows my idea of what a MIDI accordion would look like.

The illustration above shows the keyboard side of the accordion. The keyboard is played with the right hand. The knobs near the keyboard are used for controlling filters, and digital effects such as vibrato, phase shifters, and ring modulators. Waveforms can also be selected with these knobs. The MIDI accordion would not have reeds, so it would not be able to produce any sound on it's own, it is basically a MIDI controller,that would be used to control a synthesizer, or a computer that was equipped with MIDI software. MIDI stands for Musical Instrument Digital Interface, which is the common standard for electronic musical instruments today.

The illustration above shows the left side of the accordion. The left side has bass-chord buttons that are played with the left hand. In this instrument, there are twelve buttons and a large round ball called a 'track-ball'. The track-ball is used to control digital effects, such as filtering. Since this accordion has no reeds, it does not produce sound acoustically, it can only produce sound electronically. It would have an air-pressure sensor inside that would detect changes in air pressure. When the bellows is pulled apart, air is sucked into the instrument, and the air-pressure sensor would detect low air pressure. When the bellows is squeezed, the air-pressure sensor would detect higher air pressure. These changes in air pressure could be used to control various MIDI parameters, such as waveform, filters, and so on. For example, the instrument may be programmed to use square-wave modulation when the bellows is being pulled open, and would use triangle-wave modulation when the bellows was being squeezed shut. So, basic changes in the instrument's sound could be made just my manipulating the bellows. The musician playing the instrument could program his own changes, to customize his instrument's responses.

The illustration above shows a mini-accordion, based on the same invention. This instrument would have a small track-ball on each side. The straps that secure the instrument to the musician's hands are not shown in this illustration. The track-balls on the instrument could be used to control pitch bend, wave forms, filters, vibrato speed, or other parameters.

The illustration above shows one side of the mini-accordion. Five bass-chord buttons are shown, as well as a track-ball. The air-pressure sensor inside the instrument can be used to detect how forcefully the musician pulls the bellows apart, or how forcefully he squeezes the bellows together. The volume of the instrument's sound may be proportional to this force, for example, high air pressure equals loud sound, low air pressure equals diminished sound.

Anthony Ratkov. November 26,2011. Computer-graphic images by Anthony Ratkov.


Submit a Comment

No comments yet.


This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

Show Details
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)