Tuned Skulk Sensors

Think of the skulk sensors like the antenna on a radio, and the adjacent note block as the dial. If a skulk sensor is placed on or next to a tuned note block, then it will only resonate with others that are tuned to the same note. Multiply that by all the different sound effect that note blocks can produce, and we have an enormous range of frequencies to work with. You could even place note blocks on all six sides of the skulk sensor and have it send or recieve multiple frequencies at once. Any skulk sensor that lacks a note block would operate as usual. This would help to expand the use of skulk sensors by using a block that already exists instead of creating a whole new feature from scratch.