131 resultados para Keyboard
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The figure and the oeuvre of Carlos Seixas (1704-42) were rediscovered in the 1930s chiefly by the British musicologist Macario Santiago Kastner (1908-92), whose writings and editions raised the attention of international scholars and interpreters for the Portuguese composer. Nevertheless, and in spite of an unusual editorial tradition for Portuguese standards, a critical appraisal of the body of sources of Seixas' keyboard sonatas has never been attempted, to the point of even impeding the knowledge of how many there really are. This article deals briefly with the issues of source situation, authorship attribution and the distinctive characteristics of Seixas' style, offering a preliminary catalogue of the sonatas and a description of four of the manuscript collections containing them, housed at the National Library of Portugal. Textual peculiarities and problems of works surviving in more than one source are examined and the question of text 'banalization' by means of the incorporation of performance practice gestures is also discussed, advancing the hypothesis of the existence of two different traditions for some of the sonatas―one written and one 'oral'―that merge in the texts known to us.
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Digitoitu 29.10 2008.
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Electrical keyboard instruments and computer-aided music-making generally base on the piano keyboard that was developed for a tuning system no longer used. Alternative keyboard layout offers at least easier playing, faster adopting, new ways to play and better ergonomics. This thesis explores the development of keyboard instruments and tunings, and different keyboard layouts. This work is preliminary research for an electrical keyboard instrument to be implemented later on.
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As a consequence of domestication, dogs have a special readiness for communication with humans. We here investigate whether a dog might be able to acquire and consistently produce a set of arbitrary signs in her communication with humans, as was demonstrated in ""linguistic"" individuals of several species. A female mongrel dog was submitted to a training schedule in which, after basic command training and after acquiring the verbal labels of rewarding objects or activities, she learned to ask for such objects or activities by selecting lexigrams and pressing keys on a keyboard. Systematic records taken during spontaneous interaction with one of the experimenters showed that lexigrams were used in an appropriate, intentional way, in accordance with the immediate motivational context. The dog only utilized the keyboard in the experimenter`s presence and gazed to him more frequently after key pressing than before, an indication that lexigram use did have communicative content. Results suggest that dogs may be able to learn a conventional system of signs associated to specific objects and activities, functionally analogous to spontaneous soliciting behaviors and point to the potential fruitfulness of the keyboard/lexigram procedure for studying dog communication and cognition. This is the first report to systematically analyze the learning of arbitrary sign production in dogs.
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At head of title: Paper read before the fourth congress of the International Musical Society (Internationale Musikgesellschaft), London: May 29 to June 3, 1911.
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Mode of access: Internet.
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Publisher's no.: Edition Peters no. 3245.
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Mode of access: Internet.
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Mode of access: Internet.
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Includes index.
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Supporting the forearm on the work surface during keyboard operation may increase comfort, decrease muscular load of the neck and shoulders, and decrease the time spent in ulnar deviation. Wrist rests are used widely in the workplace and are more commonly being incorporated in keyboard design. The aim of this study was to examine the effect of wrist rest use on wrist posture during forearm Support. A laboratory based, experimental study was conducted (subjects n = 15) to examine muscle activity and wrist Postures during keyboard and mouse tasks in each of' two conditions; wrist rest and no wrist rest. There were no significant differences for right wrist flexion/extension between use of a wrist rest and no wrist rest for keyboard or mouse use. Left wrist extension was significantly higher without a wrist rest than with a wrist rest during keyboard use (df = 14; t = 2.95; p = 0.01; d = 0.38). No differences with respect to use of a wrist rest were found for the left or right hand for ulnar deviation For keyboard or mouse use. There were no differences in muscle activity between the test conditions for keyboard use. Relevance to industry Wrist rests are used widely in the workplace and are more commonly being incorporated in keyboard design. Use of a wrist rest in conjunction with forearm support when using a conventional desk does not appear to have any impact on wrist posture or muscle activity during keyboard use. (C) 2004 Elsevier B.V. All rights reserved.