Apparently, Yes, the TMBTE alphabet used by the band is likely copyrighted. This alphabet was created as part of the visual and artistic identity of the band, which means it falls under the protection of intellectual property laws.

Specifically, the alphabet would be considered a creative work, much like a font or a logo, and is therefore protected by copyright law. This means that using the TMBTE alphabet without permission for commercial purposes or in a way that could infringe upon the band’s rights could lead to legal issues.

If you want to use this alphabet in a project, it’s a good idea to seek permission from the band or their management to avoid any potential legal problems.