Music – Accessories – Teaching devices
Patent
1974-12-09
1976-04-13
Gonzales, John F.
Music
Accessories
Teaching devices
G09B 1502
Patent
active
039496406
ABSTRACT:
A device of the type of a slide rule and adapted to indicate and teach musical data and, in particular, the chords, their construction and relationship, and their easy transposition from one key to another. This device includes a base member having a rectilinear groove in the front face, a ruler slidable in this groove, a chromatic scale marked on the front face of the ruler, diatonic scales of the major and its direct minor modes marked along the opposite edges respectively of the groove, and chord indicators on the front face of the base member and bearing coded identification of their interval, their localizations, their qualification, their components thirds and their distinctive notes. In a particular embodiment, the indicators indicate the major common chords and their derivatives and the pointers indicate the modal and tonal notes of each chord when concerned.
REFERENCES:
patent: 1091865 (1914-03-01), Scroggs
patent: 2193885 (1940-03-01), Riley
patent: 3592099 (1971-07-01), Gibby
LandOfFree
Musical chords teaching and indicating devices 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 chords teaching and indicating devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Musical chords teaching and indicating devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-745755