The “MUSIGRAPH 100” Musical Slide Rule VERY RARE – NO LONGER PRODUCED
This invention was created by two professional musicians, one of whom holds a Masters Degree in Musicology. The Musigraph Company was formed in 1971 to produce this product, and a limited number of “Musigraph 100’s” were manufactured at that time. No additional copies have ever been produced, and the former owners of the Musigraph Company have a limited supply left. ONCE THE CURRENT SUPPLY OF MUSIGRAPH 100s ARE GONE, THEY ARE GONE – THE OWNERS HAVE NO CURRENT PLANS TO MANUFACTURE ANY MORE OF THEM.
Created for professional musicians by professional musicians. If you are a performer, composer, arranger, teacher or student of music, you will find the Musigraph 100 to be a VALUABLE tool for your trade. Anyone wishing to deepen their understanding of music will also find this device to be helpful and fascinating. This innovative tool for the music profession is considered to be “the finest graphic reference ever created for the study and practical application of the principles of music theory and harmony.” (It is so unique and innovative that the Science Museum in London even bought one to put on display.)
There is no other device for the understanding and practical application of musical information that even remotely compares to the Musigraph. It is a tool that any musician can use for a lifetime, for so many different purposes. It is the finest portable transposition device ever invented, making it an invaluable, handy tool for composers and arrangers. It is also a highly useful tool for teachers of music theory, as it can be used to clarify or provide infinite examples of a point in theory, therefore it can lead to far more comprehensive understanding of musical principles.. It is the ultimate "short cut," because it is graphic rather than textual. It puts at the fingertips of any teacher, student, or musician information otherwise available only in an extensive library of works on theory and harmony.
FEATURES OF THE “MUSIGRAPH 100”:
SIDE ONE OF THE SLIDE RULE COVERS Key Signatures, Transposition, Intervals, Harmonic Analysis, Chord Building, Overtone Series Graphs, Vibration Frequency Ratios, and Harmonic Resource Tables.
SIDE TWO OF THE SLIDE RULE COVERS THE CLASSIC SCALES: Lydian, Ionian, Mixolydian, Dorian, Aeolian, Phrygian, Locrian, Melodic Minor, and Harmonic Minor.
It is basically an entire music theory course. It allows the user to easily accomplish all of the following tasks:
Find all key signatures.
Transpose from any key to any key while maitaining absolute musical accuracy – note for note, and chord root for chord root. (The Musigraph uses the more precise mathematically linear cycle of 5th rather than the chromatic scale – the heart of most harmonic progression and of root movement is the cycle of fifths. This is also the heart of the Musigraph system – this device relates every tone of the chromatic scale to the cycle of 5ths and displays each tone in respect to a given key in 5ths-cycle order.)
Find and name all intervals, from the diminished 7th on the flat side to the augmented 9th on the sharp side (intervals are the basis of music – vertically they give us chords and harmonic relationships, and horizontal intervals result in melody and scale relationships).
Find all enharmonic equivalents of any tone.
Transpose for all instruments of any pitch in relation to C-Concert. Musigraph works equally well for owners of b-flat trumpets, e-flat alto saxophones, harps tuned to c-flat, and so forth – a truly versatile tool for ALL musicians.
Find all of the "modes" of the scale in any key. (This is especially useful for jazz musicians as well as classical musicians.)
Find the relationship of any melody note to the harmony which accompanies it. This capability makes it possible to analyze the melodic/harmonic relationships throughout a composition, find similar “emotional” tones, and reharmonize old songs to make them sound more modern, among other things.
Find all possible harmonization for any given tone of melody – low degree, high degree, scalewise, or chromatic passing tone.
Perform a harmonic analysis of any composition (the Musigraph provides roman numeral designations of all roots of the chromatic scale in relation to any key center the user sets up).
Musigraph is also a complete and detailed guide for constructing chords.
This truly ingenious device answers hundreds of musical questions – almost any question you can think of – with consistent musical accuracy. Easy to use, it offers the most comprehensive coverage of theory and harmony facts and examples to be found in any single reference source. It presents information clearly, logically, and in a context that enhances both the understanding and practical application of everything from scales to harmonic overtones.
The Musigraph strips the mystery from musical acoustics, graphically displaying the harmonic overtone series on any root, plus the vibrational frequency ratios of all intervals. It answers all your theory and harmony questions – from basic ones about key, signatures, scales, modes, intervals, etc., to more complicated questions such as where a chord can progress and why, how to reharmonize a tune to get the sound you want, how to mix harmonies from many keys without getting bogged down, how to modulate, how to do every kind of transposition, chord references for every key, 100-plus harmonizations for any top note, and much more!
Each Musigraph 100 kit consists of a Musigraph 100 slide rule, a handy protective vinyl carrying case, and an 8-page instruction booklet. The instructions that accompany the Musigraph are painstakingly detailed and in and of themselves, these instructions could be considered to be a short “course” in music theory and harmony.
The “Musigraph 100” is made of very sturdy and durable plastic, close to ¼ inch thick. It is built to last through a lifetime of use, even if musicians take it on the road with them. Its measurements are 12” by 1.75” by ¼ inch, and therefore it fits easily into most musical instrument cases – very handy when traveling or performing.
Shipping Information:
To United States: $6.99 for one Musigraph, $2.50 more for each additional Musigraph