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Mouse chording is the capability of performing actions when multiple mouse buttons are held down, much like a chorded keyboard and similar to mouse gestures. One common application of mouse chording, called rocker navigation , is found in Opera and in mouse gesture extensions for Mozilla Firefox .
The accordion is played by compressing or expanding the bellows while pressing buttons or keys, causing pallets to open, which allow air to flow across strips of brass or steel, called reeds. These vibrate to produce sound inside the body.
A melodeon or diatonic button accordion is a member of the free-reed aerophone family of musical instruments. It is a type of button accordion on which the melody -side keyboard contains one or more rows of buttons, with each row producing the notes of a single diatonic scale .
A button accordion is a type of accordion on which the melody-side keyboard consists of a series of buttons. This differs from the piano accordion , which has piano-style keys. Erich von Hornbostel and Curt Sachs categorize it as a free reed aerophone in their classification of instruments , published in 1914. [ 1 ]
A common example using a GUI accordion is the Show/Hide operation of a box region, but extended to have multiple sections in a list. SlideVerse is an accordion interface providing access to web content. [1] The list view of Google Reader also features this. In an early example, Apple's download page used roll-over accordions in 2008.
Chromatic button accordion; Classification: Free-reed aerophone: Playing range; Right-hand manual: The Russian bayan and chromatic button accordions have a much greater right-hand range in scientific pitch notation than an accordion with a piano keyboard: five octaves plus a minor third (written range = E2-G7, actual range = E1-D9, some have a 32 ft Register on the Treble to go even lower down ...
Performance featuring a trikiti with tambourine accompaniment. The trikiti [1] (standard Basque, pronounced ) trikitixa (dialectal Basque, pronounced ), or eskusoinu txiki ("little hand-sound", pronounced [es̺kus̺oɲu tʃiki])) is a two-row Basque diatonic button accordion with right-hand rows keyed a fifth apart and twelve unisonoric bass buttons.
The Flutina is an early precursor to the diatonic button accordion, having one or two rows of treble buttons, which are configured to have the tonic of the scale, on the "draw" of the bellows. There is usually no bass keyboard: the left hand operates an air valve (silent except for the rush of air). A rocker switch, called a "bascule d'harmonie ...