|
Alternative Designs With the three-row embodiment of the keyboard, the transposing feature is much less important (as both patterns are available); however, lights could still be placed in all keys corresponding to C and F in the same way:
(Default)
(Transposed) Another idea would be to manufacture a keyboard on which ten keys are in two different fixed (painted) colours, whereby LEDs inside all remaining keys representing C and F (by default) can be switched to match either of the fixed colours. For example, an orange and a green LED could be used so that when the green LED lights are on, green keys correspond to C, D, E, F, G, A, and B in their default position, with the fixed red keys representing C#, D#, F#, G#, and A#:
When transposed upwards, the green LEDs are turned off and the red LEDs on, so that this time, the red keys represent C, D, E, F, G, A, and B in the transposed position, with the fixed-green keys representing C#, D#, F#, G#, and A#:
(Yet another embodiment of the invention would be the inverse of the systems above, where each octave has ten keys made of a white material that is transparent to a coloured LED light, whereby one set of keys are coloured by lights representing the notes C#, D#, F#, G#, and A# in the default position, and another set of keys coloured by lights representing these in the transposed position, thus requiring the use of five LED lights per octave in each position. Sometime in the future, keys containing LEDs may be replaced with keys that are constructed from a material that can change colour with an electric charge rather than lit from the inside, so that the use of many colour-changing keys becomes preferable to the use of one or two LEDs per octave.)
|
||||||||||
