Cymatic Modulation Synthesizer (CMS) is a musical instrument akin to an installation in which people can enjoy visual representation of music created by reflecting interesting sounds. The concept behind CMS is that the changes in the lights created four-cascaded NAND Gate oscillator through photoregisters paced under the water tank. The water patterns are created by another NAND Gate oscillator. I got this idea from looking at the instructions in Nicholas Collin’s book when I made the oscillators. I discovered the interesting sounds by adding several photoregisters on the cascaded oscillator. I have been fascinated by how vibrations from the sound, which are frequently of lower frequencies, make patterns on the liquid. Therefore, I decided to experiment with combining these two ideas.