Sonata form, also known as sonata-allegro form, is an organizational structure based on contrasting musical ideas. It consists of three main sections - exposition, development, and recapitulation - and sometimes includes an optional coda at the end. In the exposition, the main melodic ideas, or themes, are introduced. In the development section, these themes are explored and dramatized. The recapitulation brings back and resolves the two original themes by placing them both in the tonic key, which is the main tonal center of the piece and almost always the key in which the piece begins and ends. Often, the tonic key is indicated by the title of the work. The coda, if present, is a closing section that wraps up the melodic ideas and reaffirms the tonic key with a strong cadence. It is sometimes called 'sonata-allegro form' because it was often marked to be played at a fast (allegro) tempo, as well as to distinguish it from the sonata, a specific genre of music, rather than a form. Piano Works of Ludwig van Beethoven became a guiding spirit for composers and artists all the time. Not only the piano works but all the works of Beethoven taking part in literature are the role models enlightening the paths of composers, students and artists and enabling them to see their future in the same way. This indicates that a composer such as Beethoven is a composer who is taken as a role model not only in his era but also in the following eras. Today's composers, researchers examine the sonority, pattern balance, motive developments in the works of Beethoven through the pattern and composition techniques. They differentiate their perspectives. Thirty-two piano sonatas are acknowledged as the basic milestone of the composer. C major No21 Op 53 sonata are in an example format in this version. It is called as Waldstein, as well later on. The work is full of innovations in terms of form, new structural techniques, pattern and composition.