The eye icon in Spotify is very similar to Egyptian hieroglyphics but very different from the Mayan pictograph eye. They also have some standards, such as the shape of the eye. The Spotify app gives an abbreviated version of the human eye.
Mayan pictographs are different than Egyptian hieroglyphs and Spotify icons. The pictograph is more decorative. Egyptian hieroglyphics are simpler than pictographs eye, with the simple characteristics of Egyptian time. When it comes to Spotify, it is easy to know it is an eye, but it might take time to learn what represents in the app.
The Spotify icon group also shows the evolution of technology; there are some icons you couldn’t see before the Industrial Revolution—for example, a camera icon, speaker, clock, album-like library, and microphone. What is different about Spotify is that it also has unique icons that represent a music-playing app. For example, The camera icon, speaker, clock, and microphone could describe it as music-related software.