A Device for Composing and Playing Musical Motifs

摘要

1,173,747. Electrophonic instruments. E. D'AGATA. 16 Dec., 1966 [8 Jan., 1966], No. 56429/66. Headings G5J and G5X. A device for composing and playing musical motifs, comprises a base panel, an electronic oscillator, a sound reproducer; a plurality of note representing members each containing a tuning element (characteristic of the note) for the oscillator, and being adapted to be positioned on the base panel to represent a line of music, and sequence switching means to sequentially connect the tuning elements of the positioned note represented members into the tuning circuit of the oscillator. As shown, plastics tablet members (Fig. 3) each contain a resistor 31 the value of which corresponds to the note 32 indicated on one face, and have terminal pins 33, 34 which co-operate with socket members 6, 6SP1/SP &c. to support the tablets in rows on the base panel 8. A motor driven distributer 3 scans the tablets row by row successively connecting the individual resistors as the timing component in a transistor oscillator MA thus varying the frequency. The speed of the motor may be varied. The output of the oscillator is fed to a speaker AP which plays the tune set up. The oscillator includes capacitors which can be switched in and out to change to a higher or lower octave. In a modification (Fig. 5, not shown) the array of tablets is scanned by a pair of chain counters. Printed circuits may be used. The components in the tablets may alternatively be capacitors, inductors or bridge circuits.