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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.
Tabs may appear in a horizontal bar or as a vertical list. Horizontal tabs may have multiple rows. In some cases, tabs may be reordered or organized into multiple rows through drag and drop interactions. Implementations may support opening an existing tab in a separate window or range-selecting multiple tabs for moving, closing, or separating ...
IE Tab is a browser extension for the Google Chrome [1] web browser. The extension allows users to view pages using the Internet Explorer browser engine MSHTML . This can be used for viewing pages that only render properly, or work at all, in Internet Explorer.
In object-oriented programming, the open–closed principle (OCP) states "software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification"; [1] that is, such an entity can allow its behaviour to be extended without modifying its source code. The name open–closed principle has been used in two ways.
The accordion was spread across the globe by the waves of Europeans who emigrated to various parts of the world in the late 19th century and early 20th century. The mid-19th-century accordion became a favorite of folk musicians for several reasons: "The new instrument's popularity [among the common masses] was a result of its unique qualities.
How many reeds an accordion has is specified by the number of treble ranks and bass ranks. For example, a 4/5 accordion has four reeds on the treble side and five on the bass side. A 3/4 accordion has three reeds on the treble sides and four on the bass side. Reed ranks are classified by either organ 'foot-length' stops or instrument names ...
96-button Stradella bass layout on an accordion. C is in the middle of the root note row. The Stradella Bass System (sometimes called [1] standard bass) is a buttonboard layout equipped on the bass side of many accordions, which uses columns of buttons arranged in a circle of fifths; this places the principal major chords of a key (I, IV and V) in three adjacent columns.
Unlike the piano accordion, but in similar fashion to diatonic free-reed instruments such as the melodeon, Anglo concertina, or harmonica, a given bandoneon button produces different notes on the push and the pull. This means that each keyboard has two layouts: one for opening notes, and one for closing notes.