Degree mode in magic calculator pdf#

In its preferred embodiment, the movable member comprises a disc that is rotatably mounted on the base member.

BRIEF DESCRIPTION OF THE INVENTIONīriefly, the invention comprises a first base member and a second movable member mounted thereon. The combining of these functions into a simple, direct reading device would permit use of the device for musical instruction to novices as well as for use as a tool in music composition by accomplished musicians. In particular, it is desirable to provide a simple device having the minimal amount of indicia thereon for performing the functions of spelling and transposing of musical chords or notes and for performing the necessary information useful in chord analysis and identification of musical chords from key signatures.

The aforementioned calculating devices are not ideally suited for use by novices in the musical field because of an overly complex treatment and arrangement of the musical scales or because the devices are over simplified and fail to provide all the desirable functions in chord spelling, transposing and/or analysis. Other devices have employed the circle of fifths progression, i.e., every fourth note of the musical scale, such as U.S. A number of these devices have the musical scale presented in a chromatic order such as described in U.S. There have been provided a large number of devices, including devices of the circular rule variety, for the assistance of musical chord and scale analysis.

G09B15/007- Non-electrically operated systems using disc-shaped boards.G09B15/004- Non-electrically operated systems.G09B15/001- Boards or like means for providing an indication of chords.G09B- EDUCATIONAL OR DEMONSTRATION APPLIANCES APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE MODELS PLANETARIA GLOBES MAPS DIAGRAMS.G09- EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS.230000003190 augmentative Effects 0.000 claims description 6.230000003292 diminished Effects 0.000 claims description 9.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Charles Stephen Bond filed Critical Charles Stephen Bond Priority to US05/500,386 priority Critical patent/US4074607A/en Application granted granted Critical Publication of US4074607A publication Critical patent/US4074607A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US05/500,386 Inventor Charles Stephen Bond Original Assignee Charles Stephen Bond Priority date (The priority date is an assumption and is not a legal conclusion.

Degree mode in magic calculator pdf#

Google Patents Music magic circular calculatorĭownload PDF Info Publication number US4074607A US4074607A US05/500,386 US50038674A US4074607A US 4074607 A US4074607 A US 4074607A US 50038674 A US50038674 A US 50038674A US 4074607 A US4074607 A US 4074607A Authority US United States Prior art keywords indicia note representative index series Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US4074607A - Music magic circular calculator US4074607A - Music magic circular calculator