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Welcome to lớn the Piano Technicians Guild ("vinaexpress.com.vn") College and University Technicians (CAUT) Professional Online Community! Thank you for joining us. We value your active sầu participation. Over 400 vinaexpress.com.vn members identify themselves as working for colleges và universities. A các mục of these members và their liên hệ information can be found here. We are pleased to lớn be able lớn provide valuable resources for administrators và faculty as well as piano technicians. It is our hope that this information will prove useful as we pursue our common goals of guiding our institutions toward the acquisition of appropriate instruments, & helping to lớn maintain that inventory at the highest possible standards by implementing current best practices in piano technology. Enjoy your stay, and please return often lớn check for new events & library offerings, và to lớn keep up with the lathử nghiệm discussions underway.

Extended Piano Use Protocol

PROTOCOL FOR EXTENDED TECHNIQUES PIANO PERFORMANCEPrepared by members of the College và University Technicians Committee of the Piano Technicians Guild, in consultation with various pianists và composers.Extended techniques piano use requires the performer khổng lồ produce sound by means other than, or in addition to lớn, playing the keys. Techniques employed include strumming, bowing, and/or striking the strings, và sometimes striking wooden parts of the case. This can be done either using fingers & hands or hand held objects. Prepared piano use generally requires adding objects khổng lồ the string system and other parts of the piano. Extended techniques và prepared use often requires marking parts và strings.The use of extended techniques has been a source of conflict between pianists, composers, và piano technicians. The purpose of this document is lớn lay the groundwork for better communication & understanding, recognizing that extended techniques are a legitimate part of musical performance, but that they have sầu the potential to lớn cause damage lớn the instrument.We take it for granted that we always strive sầu khổng lồ provide a composer and/or pianist with a piano of high quality when a piano is used conventionally. It is no less important that a composer and pianist have sầu a suitable instrument to make music using extended techniques. It is not in the best interest of the art khổng lồ provide inferior pianos for any performance. When at all possible, a piano in very good working order should always be provided for extended techniques use. Most often, that can be a piano routinely used for most concert use, but sometimes it will make sense to lớn substitute a different piano.We all need to bear in mind that a concert piano is a shared resource. It represents an expensive sầu investment of both money & continual maintenance on the part of the piano technician, & both its appearance & high-cấp độ function have considerable importance lớn the institution và khổng lồ all who use it. Even a very minor mechanical defect, lượt thích a slightly displaced damper, can make the piano unusable for performance until the defect has been remedied. Methods of marking that seem innocuous, lượt thích the use of pencil, blackboard chalk, or masking tape, can leave sầu permanent damage lớn the finish, or can be difficult to lớn impossible to remove completely. There are also risks of considerably more serious damage associated with carelessly executed extended techniques. Bass strings are particularly vulnerable to lớn damage. With these things in mind, the following procedures and limitations are suggested to lớn help guide extended uses of pianos.Extended techniques should only be performed on a designated piano after consultation with a piano technician and must follow these guidelines:oThe piano technician must approve all structural changes to any piano.

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This includes removing the lid or other case parts và attaching anything to strings or soundboard to lớn modify the sound. oTouching the strings If the strings will be touched by fingers or hands (harmonics, plucking, rubbing), hands should be washed first. For moderate use of these techniques, a reasonable amount (not too much) of powdered talc may be applied to lớn the hands to lớn help prevent the transfer of oil from skin to the strings. Thin gloves should be worn for extensive sầu contact with the strings.oMarkingSticky notepaper, Post-It strips/flags or small dot labels are preferred material to use for marking dampers, agraffes or strings. To mark a string node, a thin (1/8”) strip of the adhesive sầu part of a sticky note or a mailing label can be worked around the string and stuông xã khổng lồ itself. Chalk may be used on the plain wire but never on the wound bass strings. Never use masking tape or any other adhesive sầu that may leave sầu a residue. Other than small stickies và chalk, nothing should be applied directly to the strings. This includes whiteout, tape, crayon, stickers, nail polish, etc. The performer is responsible for removing any stickers immediately after any performance.oDampersCare must always be used when touching dampers as they are easily damaged or displaced. Sticky notepaper, Post-It strips/flags or small dot labels are preferred material lớn use for marking dampers. Never use chalk. The performer is responsible for removing any stickers immediately after any performance.

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oMalleable substances on stringsBostik Blu-Taông xã, Scotch Removable Mounting Putty, or lượt thích products are the only malleable substances acceptable for direct application to the strings. The piano technician must approve all other substances.oScrews và boltsIn some cases, literature calls for the insertion of screws or other items between piano strings. Proper protocol must be followed when inserting screws. Only use new screws and bolts, or those in lượt thích new condition, in the piano. Screws & bolts showing signs of rust or corrosion should never be inserted between the strings. Screws should be carefully selected lớn fit inlớn the gap between the strings with minimum spreading. Depress the damper pedal while inserting anything between the strings. Go slowly, taking great care not to lớn let the screw come in contact with the soundboard. Only plastic screws/bolts or similar materials softer than metal may be used when inserting between wound strings.oStriking & plucking stringsStrings may be struông chồng or plucked with fingers or guitar pichồng. Other devices must always be a material that will not mar or scratch strings. On steel strings only materials that are softer than the steel string, such as brass or aluminum, may be used. Copper wound bass strings must be struck or plucked with a material softer than copper (copper is much softer than steel). Acceptable materials might include wood, plastic, rubber and felt mallets. The general rule is that the material should not be harder than the strings. Never use a steel chisel or screwdriver on piano strings (a substitute may be made from brass stock). The piano technician will help any performer in selecting materials that will not damage the piano. oClean upThe pianist should clean up after performance and leave the piano in the same condition it was found. Nothing should be left in the piano. Do not, however, risk damaging the piano for the sake of clean up. If you need assistance removing something please liên hệ the piano technician.

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oDamage avoidance using sound & prudent judgmentMost damage to lớn pianos can easily be avoided by using good judgment và knowledge of the piano. Please consult with the piano technician before using extended techniques. If you are composing a piece using extended techniques, consult with the piano technician to ascertain what is safe. Usually alternatives lớn potentially destructive sầu methods can be found lớn satisfy both the performer và this policy.

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