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The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of industry experts.
Braille music is a complete, well developed, and internationally accepted musical notation system that has symbols and notational conventions quite independent of print music notation. It is linear in nature, similar to a printed language and different from the two-dimensional nature of standard printed music notation.
At first, potato chips were packaged in barrels or tins, which left chips at the bottom stale and crumbled. In the 1920s, Laura Scudder, [32] [33] [34] an entrepreneur in Monterey Park, California, started having her workers take home sheets of wax paper to iron into the form of bags, which were filled with chips at her factory the next day ...
1982: A CD-ROM contains data accessible to, but not writable by, a computer for data storage and music playback. The 1985 Yellow Book standard developed by Sony and Philips adapted the format to hold any form of binary data. [524] 1982: Direct to home satellite television transmission, with the launch of Sky One service. [525]
Example of numeric vihuela tablature from the book "Orphenica Lyra" by Miguel de Fuenllana (1554). Red numerals (original) mark the vocal part. Tablature (or tab for short) is a form of musical notation indicating instrument fingering or the location of the played notes rather than musical pitches.
AMPEX 440 (two-track, four-track) and 16-track MM1000 Scully 280 eight-track recorder using 1 inch (25 mm) tape at the Stax Museum of American Soul Music. Multitrack recording of sound is the process in which sound and other electro-acoustic signals are captured on a recording medium such as magnetic tape, which is divided into two or more audio tracks that run parallel with each other.
This article cites its sources but its page reference ranges are too broad or incorrect. Please help in adding a more precise page range. (July 2024) (Learn how and when to remove this message) Survey of eight prominent scripts (left to right, top to bottom): Sumerian cuneiform, Egyptian hieroglyphs, Chinese characters, Maya script, Devanagari, Latin alphabet, Arabic alphabet, Braille Part of ...
A typical five-line staff. In Western musical notation, the staff [1] [2] (UK also stave; [3] plural: staffs or staves), [1] also occasionally referred to as a pentagram, [4] [5] [6] is a set of five horizontal lines and four spaces that each represent a different musical pitch or in the case of a percussion staff, different percussion instruments.