Data on the internet has a very long lifetime, and web pages remain like time capsules. We can still find sites from the early days of the web, and content we create today might be found far in the future. What we publish can be encountered by a wide audience from around the world and maybe beyond.
Thus, I'm sending this website to a potential future where human beings are less able to control their facial muscles due to the declining frequency of the usage of facial expressions in a highly virtual world, or a future where humans are developed into cyborgs and lost their connection to their organic body in terms of somatic awareness, or maybe a world that has already been invaded by aliens who are trying to figure out how human faces work.
The message is delivered to the future in a way the audience can create music by making different facial expressions and moving different parts of their faces to reactivate their facial muscles or to understand the emotions on the face with the help of acoustic effects. Different sounds will also be archived according to different emotions detected from the expressions to provide a comprehensive experience of human feelings.
If human faces no longer exist at that time, maybe "they" will need some archeology to decode this message...