Shown are the flags of the Expansion Principle, which is a new musical dimension invented by Tralian. The system opens up a larger musical space for the fingerboard, by utilizing a collection of sharps in five repeating symbols.
Tralian is a fine art classical composer/inventor, and virtuoso trilloist.
The first rhombus acoustical is shown with Tralian, who is a blue ribbon award winning musical pioneer, and is responsible for inventing a new method of playing with both hands on the fingerboard. The trillo is a timeless fine art instrument, that was developed over three decades.