Chatoyan by Ceitil published on 2018-05-24T12:18:31Z Chatoyan is a musical piece based on an optical phenomenon called Chatoyancy or cat's eye effect. It is an optical reflectance effect seen in certain gemstones. In my interpretation, it is about observing an object from different perspectives. However, and given the properties of the material, each new perspective results in a perceptual variation, which in the case of gemstones is related to colour and light. Based on this assumption, I decided to create a musical material, in this context a harmonised melody, and apply rotations and transpositions. It is important to mention that the harmonised melody is limited to one octave. In short, the highest note is, so to speak, rotated down an octave and then transposed to the level of the previously lowest note. The process is executed in turns. So there is a kind of infinity in the process. Also given the way I have worked out the harmonised melody, there is a perceptual illusion. The harmony seems to go up while the melody goes down with each repetition. Genre Classical