Klavar is a different way to write music, much easier to read, but totally equivalent to the traditional notation.
Klavar does not simplify the works of the composers, but the notation makes reading music much easier.
The expressivity of the notation is equivalent to the traditional one. It can capture everything that the composers put on their sheets.
It takes advantage of a new and fresh design based on contemporary technology, rather than on the accumulation over the previous centuries of often obscure symbols and rules in the traditional notation.
A Quick Start guide to the Klavar notation and free piano and keyboard courses are freely available from Free Music Sheets and Courses section.