Simplify the following text for a Grade 10 native English-speaking person.
Original: Having been disappointed with Ellis ' performance , Harry proposed the idea that they should call the assembled quartet of friends The Dissenters and make Liverpool famous ; Sutcliffe and Murray with their paintings , Harry writing and Lennon playing music .
Simplified: Using the name dissenter , they promised to make Liverpool famous with Lennon 's music , Sutcliffe 's paintings and Harry 's writing . The Dissenters did not get far together , but each member later became well-known .