Hello PRATZERT,

The Tyros 4 is an excellent keyboard if you only want to play on-board styles, but the operating system is attrocious and needs to be brought into the 20th century in my opinion. I recently px my KN7000 for the Yamaha PSR950 which is also a good keyboard and being lighter in weight is easier to transport (which is why I bought it) However, I really miss my KN7. It was a major mistake parting with it. Like Elizabeth said - think hard before parting with it.

Audrey