Music – Accessories – Teaching devices
Patent
1974-12-09
1976-07-13
Gonzales, John
Music
Accessories
Teaching devices
G09B 1502
Patent
active
039687228
ABSTRACT:
A device having the general form of a simple slide rule and bearing marking on adjacent faces to teach the law of the major mode, to effect transposition from one key to another, to readily define the signature of any selected key, and to teach the intervals, their qualifications and their relationship. This device is characterized by markings adapted to perform the above functions and including a diatonic scale including the associated degrees and tetachords of the major mode, a chromatic scale on a slide running laterally adjacent to the diatonic scale, and an intervals indicator arranged adjacent the opposite side of the chromatic scale relative to the diatonic scale and having coded marks pointing toward the chromatic scale and adapted to indicate any simple and composed interval and the qualification thereof. The marking of the tetrachords and the degrees thereof allows to readily read the signature of any key merely upon registry of the key note with the first degree.
REFERENCES:
patent: 2193885 (1940-03-01), Riley
patent: 3592099 (1971-07-01), Gibby
LandOfFree
Musical keys and intervals teaching device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Musical keys and intervals teaching device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Musical keys and intervals teaching device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1734097