The Origins of Phantom Partials in the Piano
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African Music Vol 6 No 2(Seb).Cdr
94 JOURNAL OF INTERNATIONAL LIBRARY OF AFRICAN MUSIC THE GORA AND THE GRAND’ GOM-GOM: by ERICA MUGGLESTONE 1 INTRODUCTION For three centuries the interest of travellers and scholars alike has been aroused by the gora, an unbraced mouth-resonated musical bow peculiar to South Africa, because it is organologically unusual in that it is a blown chordophone.2 A split quill is attached to the bowstring at one end of the instrument. The string is passed through a hole in one end of the quill and secured; the other end of the quill is then bound or pegged to the stave. The string is lashed to the other end of the stave so that it may be tightened or loosened at will. The player holds the quill lightly bet ween his parted lips, and, by inhaling and exhaling forcefully, causes the quill (and with it the string) to vibrate. Of all the early descriptions of the gora, that of Peter Kolb,3 a German astronom er who resided at the Cape of Good Hope from 1705 to 1713, has been the most contentious. Not only did his character and his publication in general come under attack, but also his account of Khoikhoi4 musical bows in particular. Kolb’s text indicates that two types of musical bow were observed, to both of which he applied the name gom-gom. The use of the same name for both types of bow and the order in which these are described in the text, seems to imply that the second type is a variant of the first. -
Lab 12. Vibrating Strings
Lab 12. Vibrating Strings Goals • To experimentally determine the relationships between the fundamental resonant frequency of a vibrating string and its length, its mass per unit length, and the tension in the string. • To introduce a useful graphical method for testing whether the quantities x and y are related by a “simple power function” of the form y = axn. If so, the constants a and n can be determined from the graph. • To experimentally determine the relationship between resonant frequencies and higher order “mode” numbers. • To develop one general relationship/equation that relates the resonant frequency of a string to the four parameters: length, mass per unit length, tension, and mode number. Introduction Vibrating strings are part of our common experience. Which as you may have learned by now means that you have built up explanations in your subconscious about how they work, and that those explanations are sometimes self-contradictory, and rarely entirely correct. Musical instruments from all around the world employ vibrating strings to make musical sounds. Anyone who plays such an instrument knows that changing the tension in the string changes the pitch, which in physics terms means changing the resonant frequency of vibration. Similarly, changing the thickness (and thus the mass) of the string also affects its sound (frequency). String length must also have some effect, since a bass violin is much bigger than a normal violin and sounds much different. The interplay between these factors is explored in this laboratory experi- ment. You do not need to know physics to understand how instruments work. In fact, in the course of this lab alone you will engage with material which entire PhDs in music theory have been written. -
The Science of String Instruments
The Science of String Instruments Thomas D. Rossing Editor The Science of String Instruments Editor Thomas D. Rossing Stanford University Center for Computer Research in Music and Acoustics (CCRMA) Stanford, CA 94302-8180, USA [email protected] ISBN 978-1-4419-7109-8 e-ISBN 978-1-4419-7110-4 DOI 10.1007/978-1-4419-7110-4 Springer New York Dordrecht Heidelberg London # Springer Science+Business Media, LLC 2010 All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. Printed on acid-free paper Springer is part of Springer ScienceþBusiness Media (www.springer.com) Contents 1 Introduction............................................................... 1 Thomas D. Rossing 2 Plucked Strings ........................................................... 11 Thomas D. Rossing 3 Guitars and Lutes ........................................................ 19 Thomas D. Rossing and Graham Caldersmith 4 Portuguese Guitar ........................................................ 47 Octavio Inacio 5 Banjo ...................................................................... 59 James Rae 6 Mandolin Family Instruments........................................... 77 David J. Cohen and Thomas D. Rossing 7 Psalteries and Zithers .................................................... 99 Andres Peekna and Thomas D. -
Electric Piano Adam Estes and Yukimi Morimoto
Electric Piano Adam Estes and Yukimi Morimoto May 16, 2018 6.101 Final Project Report Table of Contents I. Introduction II. Abstract III. Block Diagram IV. Synthesizer A. Touch Sensor B. MOSFET Switch C. Adder and Inverting Amplifier D. Voltage Controlled Oscillator E. Push-pull Amplifier V. Audio Effects A. Timbre Changer B. Octave Switch C. Soft Pedal D. Damper Pedal (Attempt) VI. Design Analysis VII. Conclusion VIII. References IX. Appendix 2 I. Introduction Musical instruments have amused people around the world throughout the history. One of the most common instruments that is enjoyed by people today is the piano. Playing the piano is very intuitive; players can make notes simply by pressing keys, and the notes ascend from left to right. In our project, we decided to build an electric piano with analog circuits. The user interface was inspired by a circuit that we built in 6.101 which lights up an LED for 30 seconds after the user touches two electrodes. We thought that the idea behind this circuit was a clever one, but we wanted to do something more interesting than just turning on a light. Turning on the circuit by touching electrodes resembles playing notes by pressing keys on the piano. The electric piano, therefore, enables players to play music in a similar way to a real piano. The features of the electric piano were inspired by those of a real piano. The electric piano can play three octaves in total, and has a soft pedal to decrease the volume. The waveshapes can be changed to several different shapes to better mimic the sounds of the piano, if not quite perfectly. -
Two Andover Girls Killed on Highway
7 *, -N Armcii Ikllf frtm Ron r«r «w WMk >ii«M 'ni itM ' . fNweeest •! IT. i t WmMtiit ' Otauf Mril «M»I toklKkC 13,705 to ML Slinajr, piMjMUrt; BlMObOT ' t t tiM AodNk n i^ to antor 7tA V , f'' BltfWIB •( CIlMlftttM Menehegttr^A City o / ViUagt Chirm VOL. LXXCTL NO. 284 (StXTEBN PAGES) MANCHESTER, CONN., TUESDAY, SEPTEMBER, 1, 1984 (OtoWfM AdVMiMar m P a f« M) PRICE SEVEN CEK fr Titan Up, Blac^Out ans CAPE KENNEDY,CENN Fla. (AP) — The Air Force launched a Titan SA mili tary space rocket on 'its maiden test flisrht . today, but lost track of it l3.min \ utes after lift-off. The 124-foot tall rocket biast' 8 ed away from Cape Kennedy'i^- Poverty Billi ;yV * Democrat 11 a.m. It* groal wa* to launch J It* third staae Into orbit a* a U i l l f l H C C S V f OOCI flying launch* platform. The y Backr Move platform, in turn, wa* to kick f loo*e a dummy -satellite into J O l l l l S O I l X O l v l separate orbit. In Caucus Within minutes, the second and third stages fired on sched WASHINGTON (API — Dem By GEORGE BAZAN ule. But, as' the rocket zipped ocratic congressional' .leaders 100 miles over a tracking sta- gave President Johnson an optl- HARTFORD" (AP) — A Uon in the West Indies Island ‘ mlsUc report today on prospects Republican leader said to of Antigua, radio contact was for enactment of his blllion-d<Jl-_ day that Republicans h»y« lost with the vehicle. -
Piano Manufacturing an Art and a Craft
Nikolaus W. Schimmel Piano Manufacturing An Art and a Craft Gesa Lücker (Concert pianist and professor of piano, University for Music and Drama, Hannover) Nikolaus W. Schimmel Piano Manufacturing An Art and a Craft Since time immemorial, music has accompanied mankind. The earliest instrumentological finds date back 50,000 years. The first known musical instrument with fibers under ten sion serving as strings and a resonator is the stick zither. From this small beginning, a vast array of plucked and struck stringed instruments evolved, eventually resulting in the first stringed keyboard instruments. With the invention of the hammer harpsichord (gravi cembalo col piano e forte, “harpsichord with piano and forte”, i.e. with the capability of dynamic modulation) in Italy by Bartolomeo Cristofori toward the beginning of the eighteenth century, the pianoforte was born, which over the following centuries evolved into the most versitile and widely disseminated musical instrument of all time. This was possible only in the context of the high level of devel- opment of artistry and craftsmanship worldwide, particu- larly in the German-speaking part of Europe. Since 1885, the Schimmel family has belonged to a circle of German manufacturers preserving the traditional art and craft of piano building, advancing it to ever greater perfection. Today Schimmel ranks first among the resident German piano manufacturers still owned and operated by Contents the original founding family, now in its fourth generation. Schimmel pianos enjoy an excellent reputation worldwide. 09 The Fascination of the Piano This booklet, now in its completely revised and 15 The Evolution of the Piano up dated eighth edition, was first published in 1985 on The Origin of Music and Stringed Instruments the occa sion of the centennial of Wilhelm Schimmel, 18 Early Stringed Instruments – Plucked Wood Pianofortefa brik GmbH. -
Extracting Vibration Characteristics and Performing Sound Synthesis of Acoustic Guitar to Analyze Inharmonicity
Open Journal of Acoustics, 2020, 10, 41-50 https://www.scirp.org/journal/oja ISSN Online: 2162-5794 ISSN Print: 2162-5786 Extracting Vibration Characteristics and Performing Sound Synthesis of Acoustic Guitar to Analyze Inharmonicity Johnson Clinton1, Kiran P. Wani2 1M Tech (Auto. Eng.), VIT-ARAI Academy, Bangalore, India 2ARAI Academy, Pune, India How to cite this paper: Clinton, J. and Abstract Wani, K.P. (2020) Extracting Vibration Characteristics and Performing Sound The produced sound quality of guitar primarily depends on vibrational char- Synthesis of Acoustic Guitar to Analyze acteristics of the resonance box. Also, the tonal quality is influenced by the Inharmonicity. Open Journal of Acoustics, correct combination of tempo along with pitch, harmony, and melody in or- 10, 41-50. https://doi.org/10.4236/oja.2020.103003 der to find music pleasurable. In this study, the resonance frequencies of the modelled resonance box have been analysed. The free-free modal analysis was Received: July 30, 2020 performed in ABAQUS to obtain the modes shapes of the un-constrained Accepted: September 27, 2020 Published: September 30, 2020 sound box. To find music pleasing to the ear, the right pitch must be set, which is achieved by tuning the guitar strings. In order to analyse the sound Copyright © 2020 by author(s) and elements, the Fourier analysis method was chosen and implemented in Scientific Research Publishing Inc. MATLAB. Identification of fundamentals and overtones of the individual This work is licensed under the Creative Commons Attribution International string sounds were carried out prior and after tuning the string. The untuned License (CC BY 4.0). -
An Exploration of Monophonic Instrument Classification Using Multi-Threaded Artificial Neural Networks
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Masters Theses Graduate School 12-2009 An Exploration of Monophonic Instrument Classification Using Multi-Threaded Artificial Neural Networks Marc Joseph Rubin University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_gradthes Part of the Computer Sciences Commons Recommended Citation Rubin, Marc Joseph, "An Exploration of Monophonic Instrument Classification Using Multi-Threaded Artificial Neural Networks. " Master's Thesis, University of Tennessee, 2009. https://trace.tennessee.edu/utk_gradthes/555 This Thesis is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Masters Theses by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a thesis written by Marc Joseph Rubin entitled "An Exploration of Monophonic Instrument Classification Using Multi-Threaded Artificial Neural Networks." I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the equirr ements for the degree of Master of Science, with a major in Computer Science. Jens Gregor, Major Professor We have read this thesis and recommend its acceptance: James Plank, Bruce MacLennan Accepted for the Council: Carolyn R. Hodges Vice Provost and Dean of the Graduate School (Original signatures are on file with official studentecor r ds.) To the Graduate Council: I am submitting herewith a thesis written by Marc Joseph Rubin entitled “An Exploration of Monophonic Instrument Classification Using Multi-Threaded Artificial Neural Networks.” I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the requirements for the degree of Master of Science, with a major in Computer Science. -
The Musical Kinetic Shape: a Variable Tension String Instrument
The Musical Kinetic Shape: AVariableTensionStringInstrument Ismet Handˇzi´c, Kyle B. Reed University of South Florida, Department of Mechanical Engineering, Tampa, Florida Abstract In this article we present a novel variable tension string instrument which relies on a kinetic shape to actively alter the tension of a fixed length taut string. We derived a mathematical model that relates the two-dimensional kinetic shape equation to the string’s physical and dynamic parameters. With this model we designed and constructed an automated instrument that is able to play frequencies within predicted and recognizable frequencies. This prototype instrument is also able to play programmed melodies. Keywords: musical instrument, variable tension, kinetic shape, string vibration 1. Introduction It is possible to vary the fundamental natural oscillation frequency of a taut and uniform string by either changing the string’s length, linear density, or tension. Most string musical instruments produce di↵erent tones by either altering string length (fretting) or playing preset and di↵erent string gages and string tensions. Although tension can be used to adjust the frequency of a string, it is typically only used in this way for fine tuning the preset tension needed to generate a specific note frequency. In this article, we present a novel string instrument concept that is able to continuously change the fundamental oscillation frequency of a plucked (or bowed) string by altering string tension in a controlled and predicted Email addresses: [email protected] (Ismet Handˇzi´c), [email protected] (Kyle B. Reed) URL: http://reedlab.eng.usf.edu/ () Preprint submitted to Applied Acoustics April 19, 2014 Figure 1: The musical kinetic shape variable tension string instrument prototype. -
Maintenance Methods for Digital Computers 1959 • VOL
1959 PICTORIAL REPORT ON THE COMPUTER FIELD DECEMBER Maintenance Methods for Digital Computers 1959 • VOL. • 8 - NO. 12 ~~"""""""""""""""""""""""""'"""""""""""""""""""""" - ~ ~ ~ ~ ~ ~ ~ ~ COMPUTER PROGRAMMERS ~ ~ ~ ~ ~ I Contribute to the f" ormulation ~ ~ ~ ~ of Ootally New Oechniques :J{pplicable I ~ to ..carge-Scale Systems at ~ ~ ~ ~ THE ~ ~ MITRE ~ ~ ~ ~ ~ ~ ~ ~ MIT~E, formed under the sponsorship of the Massachusetts Institute of Technology, ~ ~ has as a primary responsibility the design and development of computer-based air defense ~ ~ systems. An important part 01 this effort is the lonnulation 01 totally new programming ~ ~ techniques. ~ ~ Supported by such computer equipment as an IBM 704 and an experimental SAGE ~ i AN/FSQ-7 (soon to be augmented by an IBM 7090 and a solid state SAGE computer) ~ ~ MITRE engineers and scientists are involved in broad applied and creative programming ~ ~ areas. A significant part of this effort involves the development of computer programs to: ~ ~ ~ ~ • Provide simulation vehicles for testing missiles, ~ ~ interceptors, guidance systems .and tracking procedures ~ ~ • Carry out data reduction and analyses ~ ~ • Assist in the study of man-machine relations ~ ~ • Assist in the design and evaluatiou of new systems ~ ~ • Check out equipment and subsystems ~ ~ ~ ~ Additionally, MITRE has undertaken a number of challenging projects in the study of ~ ~ machine design and programming research; programming systems are being developed ~ ~ to provide more efficient techniques that will facilitate the writing, -
A Comparison of Viola Strings with Harmonic Frequency Analysis
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Student Research, Creative Activity, and Performance - School of Music Music, School of 5-2011 A Comparison of Viola Strings with Harmonic Frequency Analysis Jonathan Paul Crosmer University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/musicstudent Part of the Music Commons Crosmer, Jonathan Paul, "A Comparison of Viola Strings with Harmonic Frequency Analysis" (2011). Student Research, Creative Activity, and Performance - School of Music. 33. https://digitalcommons.unl.edu/musicstudent/33 This Article is brought to you for free and open access by the Music, School of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Student Research, Creative Activity, and Performance - School of Music by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. A COMPARISON OF VIOLA STRINGS WITH HARMONIC FREQUENCY ANALYSIS by Jonathan P. Crosmer A DOCTORAL DOCUMENT Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Doctor of Musical Arts Major: Music Under the Supervision of Professor Clark E. Potter Lincoln, Nebraska May, 2011 A COMPARISON OF VIOLA STRINGS WITH HARMONIC FREQUENCY ANALYSIS Jonathan P. Crosmer, D.M.A. University of Nebraska, 2011 Adviser: Clark E. Potter Many brands of viola strings are available today. Different materials used result in varying timbres. This study compares 12 popular brands of strings. Each set of strings was tested and recorded on four violas. We allowed two weeks after installation for each string set to settle, and we were careful to control as many factors as possible in the recording process. -
Experiment 12
Experiment 12 Velocity and Propagation of Waves 12.1 Objective To use the phenomenon of resonance to determine the velocity of the propagation of waves in taut strings and wires. 12.2 Discussion Any medium under tension or stress has the following property: disturbances, motions of the matter of which the medium consists, are propagated through the medium. When the disturbances are periodic, they are called waves, and when the disturbances are simple harmonic, the waves are sinusoidal and are characterized by a common wavelength and frequency. The velocity of propagation of a disturbance, whether or not it is periodic, depends generally upon the tension or stress in the medium and on the density of the medium. The greater the stress: the greater the velocity; and the greater the density: the smaller the velocity. In the case of a taut string or wire, the velocity v depends upon the tension T in the string or wire and the mass per unit length µ of the string or wire. Theory predicts that the relation should be T v2 = (12.1) µ Most disturbances travel so rapidly that a direct determination of their velocity is not possible. However, when the disturbance is simple harmonic, the sinusoidal character of the waves provides a simple method by which the velocity of the waves can be indirectly determined. This determination involves the frequency f and wavelength λ of the wave. Here f is the frequency of the simple harmonic motion of the medium and λ is from any point of the wave to the next point of the same phase.