Folding harpsichord of portable keyboardThe folding harpsichord was a kind of harpsichord meant for travel. Since it could be folded up into a fairly compact space, it was more easily transported than a conventional harpsichord. The folding took place on hinges and was in the longitudinal dimension, preserving the tension on the strings. The folded instrument formed a package about the size of a large suitcase.It is sometimes called by its French equivalent, clavecin bris, which means "broken harpsichord," or by the German term, Reisecembalo, which means "travel harpsichord."------Sources of portable keyboardHOASM biography. Accessed 11 February 2010Discography. Accessed 11 February 2010Haasnoot, Leendert - Hellendaal, Pieter Pietro, Petrus, Peter" in Sadie, Stanley & Tyrrell, John (editors): The New Grove Dictionary of Music and Musicians, 2nd Edition Oxford University Press, 2004, 25 000 pp in 29 volumes; ISBN978-0195170672.Free scores by Pieter Hellendaal at the International Music Score Library Project (IMSLP)Hellendaal Concerto Grosso op. 3 no. 1 in g minor on YouTubeReview by Axel Meijer, published in Tijdschrift van de Vereniging voor Nederlandse Muziekgeschiedenis, volume 33, issue 1, 1983, pages 113-116. Published, in Dutch, by the Koninklijke Vereniging voor Nederlandse Muziekgeschiedenis. Accessed 2012-12-28.------Construction of portable keyboardThe portative is constructed simply in order to make it as portable as possible. The pipes are arranged on a small rectangular windchest and supplied with wind by one or two bellows placed at the back, or under the instrument. The row of pipes is supported by posts at either end and an oblique bar. The earlier style of keyboard on the portative consists of one button for each pipe. When a button is pushed in, the corresponding pipe sounds. The button is restored to its normal position by a horn spring. Renaissance instruments use keyboards similar to Renaissance harpsichords.------Security concerns of portable keyboardSince IRC scripts are used to interface with a public network, they are a favourable target for attack. Event handling code must be careful when dealing with input received from other IRC users; a poorly written IRC script may leave the user vulnerable, allowing attackers to possibly read the user's passwords or private conversations, execute arbitrary commands in the user's IRC client, or access files on the user's hard disk.IRC Scripts downloaded from public web sites or received from other IRC users may contain backdoors or similar malicious commands. Some users prefer to write their own IRC scripts to avoid the potential problems caused by a malicious or buggy script.------Alesis Micron of portable keyboardThe little brother of the Ion is the Alesis Micron, which is extremely compact and portable. It came out in 2004 with almost the same synthesis engine and the same metal/plastic housing style as the Ion, but with only 37 keys and fewer knobs and buttons. It boasts reverb, long delay, and a pattern sequencer. Sound patches for the Ion can be used on the Micron and vice versa. The Micron's user interface features many shortcuts and is quite deep, offering users the ability to edit all of the sound engine's parameters. However, due to the lack of knobs on its control surface compared to the Ion, specialised Micron patch editor software has been made for various platforms to enable easier sound sculpting from a computer via MIDI.------Mechanics of portable keyboardThe Lettera 32 is a downstrike typebars typewriter. The typebars strike a red/black inked ribbon, which is positioned between the typebar and the paper by a lever whenever a key is pressed; a small switch located near the upper right side of the keyboard can be used to control the strike position of the ribbon, in order to print with black, red, or no ink (for mimeograph stencils).Ribbon movement, which also occurs at every keypress, automatically reverses direction when there is no ribbon left on the feed reel; two mechanical sensors, situated next to each wheel, move when the ribbon is put under tension (indicating ribbon end), attaching the appropriate wheel to the ribbon transport mechanism and detaching the other.------PCALL and FUTURE of portable keyboardMultiLisp achieves parallelism with the PCALL macro, where(PCALL Fun A B C ...)is equivalent to(Fun A B C ...)except that the arguments A, B, C, etc. are explicitly allowed to be evaluated in parallel; this circumvents the usual order of evaluation, which is sequential and left to right. It also makes use of a parallel programming construct called futures, which resembles forking, combined with lazy evaluation. Using this construct, an expression such as(cons (FUTURE A) (FUTURE B))can be written, which will overlap the evaluation of the expressions A and B, not only with each other, but with computations that use the result of the cons call, until an operation is performed that needs correct information about the value of A or B.------Cover versions of portable keyboardElvis Presley recorded a version of the song on his 1975 album Today.The song was recorded by Ringo Starr at Chips Moman's Three Alarm Studios in Memphis, in February 1987, but the recording was never released.Shakin Stevens also released a version of this song in 1994 on the Arcade label.In 2013, the indie band Part Time released a cover of this song with their single "I Want to Go".On the Replacements' box set "Dead Man's Pop", the band covers the song with the help of Tom Waits.------Teachers of portable keyboardSome of the teacher include:Rupert Toogood (Curriculum Manager)David EvansJohn Moen StenslandChristine TurnerKimberly ObermeierTheresa ScheurenNoreen Nasar (IGCSE Coordinator)Luke ElliotWolfgang Scheuerpflug (IB Coordinator)Felicitas BlankPia SammerAnja ReuterPhillip GundersonClaudia Schrmann (Head of school council)Susan RotheChristian MunteanuLain Mencia MartinezRafal Milerski (CAS Coordinator)Stela GhetieAnne MohnsCarl ClendeninAnette GrundSven AdelbergerTobias Schabel (IT Manager)Nishi SuneejSimone EdlHerr Lehrian (Hausmeister)Borja PrietoJulie SharifzadehJanina PrhAnamika SaxenaRalf KilbCarolin SommerHeike Kriese-Sukala------MultiLisp of portable keyboardMultiLisp is a functional programming language, a dialect of the language Lisp, and of its dialect Scheme, extended with constructs for parallel computing execution and shared memory. These extensions involve side effects, rendering MultiLisp nondeterministic. Along with its parallel-programming extensions, MultiLisp also had some unusual garbage collection and task scheduling algorithms. Like Scheme, MultiLisp was optimized for symbolic computing. Unlike some parallel programming languages, MultiLisp incorporated constructs for causing side effects and for explicitly introducing parallelism.It was designed by Robert H. Halstead Jr., in the early 1980s for use on the 32-processor Concert multiprocessor then being developed at Massachusetts Institute of Technology (MIT) and implemented in Interlisp. It influenced the development of the Scheme dialects Gambit, and Interlisp-VAX.------Definitions of portable keyboardIn principle, the portative is a smaller instrument than the positive organ, which features more ranks of pipes and a larger keyboard. The portative also should not be confused with the regal, a small keyboard instrument that contains a rank of short-length reed pipes instead of flue pipes.In practice, however, since the Orgelbewegung revival of small organs, also small positives with a bass register and played with both hands have come to be called portatives, especially when their pipe arrangement or general layout resembles that of the genuine portative. One of the most well-known modern proponents of that kind of 'large portative' organ was Dolly Collins, who accompanied her vocalist sister Shirley Collins on many albums of traditional English folk songs.------Canon Communicator of portable keyboardIn 1974, Canon U.S.A. released the Canon Communicator, a device for those with speech impediments, originally retailing for $395. The device is battery-operated and the size of a cellphone, weighs 9.2 oz, and is portable. It has a keyboard with the letters in alphabetical order, but which can be adjusted. The device also possesses a system that memorizes and stores phrases and words from the last person to use it. It can further do printouts by connecting computers and electric typewriters with its new interface system.------Discography of portable keyboardAlbums1978: Substitute (aka Clout)1979: Six of the Best1980: A Threat and a Promise1981: 1977 to 1981 (compilation with one new song)1992: Substitute (Dutch compilation)1992: 20 Greatest Hits (compilation)1994: Clout (German compilation)2007: Since We've Been Gone (compilation with nine new recordings)2010: The Best of Clout (compilation)Singles1977"Since You Been Gone" (Russ Ballard)"Substitute""You've Got All of Me" (Terry Dempsey)"Let it Grow" (Eric Clapton)1978"Save Me" (Clodagh Rodgers)"Ms America""Under Fire" (B. A. Robertson)1980"Oowatanite" (Myles Goodwyn, Jim Clench)"Portable Radio" (Hall & Oates)1981"Wish I Were Loving You"------Bob Becker (composer) of portable keyboardBob Becker (born June 22, 1947) is an American percussionist and composer known primarily as a founding member of the Nexus percussion ensemble, as well as a performer in the Steve Reich and Musicians ensemble. He primarily performs as a keyboard percussionist, but is also skilled in tabla and concert snare drumming. As a composer, Becker employs a multicultural approach by mixing the style of western military drumming with North Indian Hindustani idioms, such as raga scale patterns and tabla drumming. This fusion of compositional practices is the main focus of works like Lahara and Mudra. There are also traces of influence from the music of minimalists like Steve Reich, which can be attributed to Becker's experience with that composer's music------Controversies of portable keyboardIn 2014 a petition was launched by some parents of students studying at SISS. The petition stated due to the parents being unhappy about the sacking of one of the staff members. The petition was launched on Openpetition.com and received support from many of the students at SISS. It contained an accusation at the school's then Headmaster, saying that he allegedly threw a keyboard at a student. The petition resulted in a failure due to the petitioners revoking their statement. Later on, they published an apology saying that "We would like to apologise that we made the accusation in the name of all 317 petitioners, which was not a fully true picture. Of the 317 petitioners 5 actually withdrew their support and explicitly disagreed with this approach (others might have silently disagreed)."------Filmography of portable keyboardMusic videos"Eutow" by Autechre (2001)"Gantz Graf" by Autechre (2002)"Verbal" by Amon Tobin (2002)"Go to Sleep. (Little Man Being Erased.)" by Radiohead (2003)"Write This Down" by Maxmo Park (2012)Short filmsSound Engine (1998)Monocodes (2000)3space (2000)Advertisements"A Day in the Life/The Icon" for Sony PlayStation Portable (2005, agency: TBWALondon)"Future Construction", "Ring", "Street" for Dodge Ram 1500 (Rock 'Em Sock 'Em campaign, 2007, agency: BBDO Detroit)"Bass Bins", "Mojito" for Bacardi (Made to Mix campaign, 2007, agency: RKCR/Y&R London)"Aroma Paths" for Nescaf Collection (2008, agency: McCann-Erickson London)"The Journey/The Legendary Cruise Party/Bottle Cap" for Heineken (2011, agency: Publicis United Moscow)"Range", "cee'd/Sportage", "Picanto/Rio" (January 2013), "Sportage/pro_cee'd GT", "Picanto/Rio" (July 2013) for Kia Motors (Keyboards/Reviews & Recommendations campaign, 2012/2013, agency: Innocean Worldwide UK, London)Art DirectionArt direction and logotypes for Bruce Music------Users of portable keyboardThe Ion is used by:Klaus SchulzePedro the Lion (on their Achilles Heel LP)Tiny Tide (on their Moontalking Album LP and Febrero Album LP)Still Flyin'The KillersSpacehotelPuro InstinctOneohtrix Point Never (Daniel Lopatin on Instrumental Tourist)Hanz ZimmerThe Micron is used by:Nine Inch NailsSteve HonoshowskySystem of a DownSimain Sound SourceBloodhound GangAshlee SimpsonGym Class HeroesEfecto TralalTegan and SaraTimes New VikingThe VeronicasThe PersonnelWalk the MoonFormer AstronautsClairvoyance BellBleach Blonde DudesMotion City Soundtrack------Dulcitone of portable keyboardA dulcitone is a keyboard instrument in which sound is produced by a range of tuning forks, which vibrate when struck by felt-covered hammers activated by the keyboard.The instrument was designed by Thomas Machell of Glasgow in the 1860s, at the same time as Victor Mustel's organologically synonymous typophone, and manufactured by the firm of Thomas Machell & Sons during the late nineteenth and early twentieth centuries.Most of the early models are tuned to sharp pitch, or the diapason normal of a 435. Some of the late models use an action suspended on a system of leaf springs, which is considerably quieter than that illustrated.