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| Number | Title | Issue Date |
| 7337946 | Device for resolving interpersonal relationship issues A device for resolving interpersonal relationship issues comprising: (a) a plurality of text sheets comprised of flexible, transparent material; (b) a rigid front cover; and (c) a rigid back cover; wherein each text sheet comprises an opaque band bearing text on eit... | 03/04/2008 |
| 7176371 | Algorithmic combo-instrument slide ruler for musical reference An algorithmic combo-instrument slide ruler comprising one common part working in cooperation with two interchangeable parts selected from separate multitudes of unique yet related parts. An opaque slidable combo-instrument tuning card is selected having thereon inf... | 02/13/2007 |
| 7141731 | Music learning aid A music learning aid to assist musicians in learning and using music theory. The music learning aid includes a semicircular folding substrate and two circular and substantially concentric discs having progressively smaller diameters. The substrate and discs are secu... | 11/28/2006 |
| 7084340 | Apparatus and method of letter learning finger patterns for stringed instruments A tool for learning positions of notes on a fingerboard of a stringed instrument having a baseboard and templates for placement over the baseboard so as to focus a student's attention on finger patterns that are necessary to master a stringed instrument. Additional ... | 08/01/2006 |
| 6930235 | System and method for relating electromagnetic waves to sound waves A system for relating electromagnetic waves to harmonic sound waves that includes a memory with logic, and a processor configured with the logic to assign one fundamental color of a color spectrum of twelve analogous colors to one of twelve fundamental tones of a mu... | 08/16/2005 |
| 6841724 | Method and system of studying music theory A method and system of teaching and/or studying music theory and for aiding the practice of musical instruments according to the integration of the color spectrum with notes of the circle of fifths and rearrangement of those notes into the musical chromatic scale. T... | 01/11/2005 |
| 6245981 | Musical key transposer A circular slide attachment with pitch notations and additional markings is provided to enable circular pitch instruments and their indicia to be used for transposing musical keys. In the preferred embodiment of the invention, a circular slide having twel... | 06/12/2001 |
| 6232538 | System and method for determining music modulation A system for determining a musical modulation from a source key to a target key, such that the source key and the target key are selected from a cycle of musical keys. The system includes a relational tool and a bridging tool. The relational tool is capab... | 05/15/2001 |
| 6031172 | Music teaching aid A music teaching aid having a number of reference rings that are positioned so as to have independent rotatable movement on a base member. Depending on the shape of the base member, the reference rings are either substantially coaxial cylindrical sleeves ... | 02/29/2000 |
| 5824931 | Electronic information aid An electronic information aid displays and calculates the relationships between a series of individual integers which may comprise alphabetical and/or numerical indicia or a series of visual and/or aural indicia or a combination of any one or more of the ... | 10/20/1998 |
| 5709552 | Music education aid A rotary disk calculator and educational aid is provided to assist in learning and understanding the relation between various musical keys on an instrument according to the circle of fifths system. A base plate member or disk is divided into twelve root k... | 01/20/1998 |
| 5320020 | Musical scale and chord display cards A set of hand-held plastic laminated disks which provide for visually displaying selected combinations of musical information such as musical notes of scales and chords. The display is composed of two disks. The top disk functions as a template and is fas... | 06/14/1994 |
| 5173566 | Apparatus for rapid reference to musical scales Disclosed are various embodiments of a musical reference apparatus for use by musicians to rapidly and easily transpose or modulate music. The invention is preferably formed of two or three disc-shaped members which are rotatable relative to one another a... | 12/22/1992 |
| 5113739 | Musical calculator This invention relates to a calculator and is more specifically concerned with a calculator for enabling a musician to visualize and organize transitions between scales, modes, etc. The present invention provides a calculator having musical notation in wh... | 05/19/1992 |
| 4984494 | Tuning pen This invention is a Tuning Pen which can serve as a writing apparatus and tuning device as well as a device for checking notes of the scale corresponding to a specific key signature. According to the present invention, the pen holder which has a tuning fl... | 01/15/1991 |
| 4961362 | Chord key calculator assembly A hand manipulable calculator assembly specifically designed to calculate chord/key construction in musical composition and incorporating a chord wheel, a note/key wheel, a major/minor wheel all being rotatably mounted relative to one another and to a fix... | 10/09/1990 |
| 4887507 | Music teaching device This invention is a music theory teaching aid which structurally includes a base member, a main wheel member pivotally attached to the base member at a central location, and twelve secondary wheel members each pivotally attached to the base member at circ... | 12/19/1989 |
| 4716806 | Musical indicating apparatus Musical indicating apparatus for finding chords, scales and transposing has a disk-like base with outer rings on both sides having the 12 notes of the chromatic musical scale. An inner rotatable disk on one side identical to the outer ring provides for tr... | 01/05/1988 |
| 4671159 | Chord key for musical instruments The invention refers to a chord key for musical instruments comprising a number of plastic sheets (1) that are rotatably connected together about a common axis and provided with marks (7) to show fingering positions on the instrument for the positions of ... | 06/09/1987 |
| 4664010 | Method and device for transforming musical notes A method of and a device for transforming the musical notes of a piece of music into different notes to obtain a new piece of music. The notes constituting the original piece of music are stored in an original music memory. These notes are then transforme... | 05/12/1987 |
| 4552052 | Modulation rule A modulation rule having a member marked with a keyboard including white keys and black keys arranged in a similar manner to that of a keyboard musical instrument, and an indication table in which the names of keys are marked, for which the keys marked on... | 11/12/1985 |
| 4503748 | Chord display device for fretted string instrument A device to display musical chords and notes for fretted string instruments comprising (a) top sheet having a plurality of transparent patterns representing the strings and frets on the fingerboard of the instrument, (b) pivot located at a central point o... | 03/12/1985 |
| 4317404 | Musical rhythm pattern generator A hand-operated musical rhythm pattern generator includes two independently rotatable discs mounted in a holder. The discs have complementary rhythm patterns printed on the peripheries thereof, a portion of which is visible through a window in the holder.... | 03/02/1982 |
| 4305323 | Harmonic conversion wheel A Harmonic Conversion Wheel is disclosed comprising a circular disk, a faceplate and attaching means joined together along a common axis which is the centerpoint of said elements. By rotation of the disk about said axis and proper registration of said dis... | 12/15/1981 |
| 4134326 | Device for computing musical relationships A device which is used for computing the transposition of musical chords and comprises a number of dials each of which is rotatable about a central axis. Each dial has a display of indicia thereon which indicate the steps of a chromatic musical scale. The... | 01/16/1979 |
| 4069736 | Music learning device A device for learning musical concepts comprises a circular display of musical notes covering at least three octaves, including notes of sharp and flat key-signatures, in adjoining relationship and a plate rotatably attached to said display, said plate ha... | 01/24/1978 |
| 4069735 | Music teaching and computation device A music teaching and computation device in the form of a slide rule has a first display part on which are set out, by means of indicia the characteristic structures of five different modes of music. A second relatively movable display part co-operating wi... | 01/24/1978 |
| 4037518 | Musical chord and note calculator A diagramming musical harmonic calculator determines combinations of natural or altered degrees in the musical scale encompassing from traditional to contemporary harmony, comprising a main disk having a central spindle, and having marked on the surface t... | 07/26/1977 |
| 4002097 | Chord progression selector A chord inversion coordination aid comprises a plurality of dials of increasing diameter and each representing a particular chord type and having a peripheral array of the scale tone names of the chord in its root and inverted positions arranged in sector... | 01/11/1977 |
| 3977293 | Left hand chord locator The invention is a teaching aid for familiarizing the beginning music student with left-hand chording and particularly the inversions of common chords which fit within the normal range of left hand fingering and comprises a front panel having a display of... | 08/31/1976 |
| 3969973 | Devices for selective display of information A musical information display device includes first and second relatively rotatable members, the first member bearing spaced musical indicia and the second member including apertures registrable with the first member indicia on such rotation and aperture-... | 07/20/1976 |
| 3960046 | Music teaching device A music teaching device in which the musical scale is marked on a circular disc co-operable with a second disc bearing musical information the two discs being relatively rotatable about their centers to relatively align the scale markings with the informa... | 06/01/1976 |
