A lot of people have asked and here it finally is:
You can now add your own music to your loading screens.
Just go to your dashboard, click Edit on one of your loading screens, go to the Music dropdown and choose Use your own song file.
Now, press the new red button underneath the dropdown, fill in the songs Title, Artist, the Volume (how loud it should play) and last but not least the song file.
Keep in mind that the song file has to be in .ogg! There are pages like audio.online-convert.com/convert-to-ogg that can convert .mp3, .wav... files to .ogg.
Enjoy the update! If there are any problems or ideas, feel free to contact us via our email: firstname.lastname@example.org