The realisation score has the score detail included with the ornaments written out as they are sounded in the realisation. It is simply a WYSIWYH (what you see is what you hear) version often presented in a reduced format. They are available to assist those in preparing music in digital format and teachers might find them useful to prepare questions based on a plain score. This is a rather grand movement featuring strong rhythmic shapes that need to be delivered with clarity of intention and accuracy in the left hand octave playing. A tempo of 96 quarter note (crotchet) beats to the minute is suggested. In the performance score 64th notes (hemidemisemiquaver) have been used in the notation of the opening to give clarity to the rhythmic patterns. The opening ornament is not always played as shown in the performance score. The appoggiaturas as in bar 19 need to be played quickly whilst the ornaments in bar 20 and 21 can be played either as acciaccaturas or appoggiaturas but not a combination of both. The long trill could possibly be longer possibly by another beat perhaps? In the early stages of learning this sonata the music editor suggests missing out the ornaments. Attention needs to be paid to the rhythmic detail and a successful performance requires the tonal contrasts of the phrases and sections to be exploited. Many performers also experiment with the octave ranges of the piano when performing this sonata. The spacial aspect of the musical content is also something that can be explored both in relationship to the musical ideas between the two hands and also in relation to the acoustic of the building in which the sonata is being performed. Tip: Performance scores are on the busy side having much too much information that distracts from the music however they are a necessary and useful evil - discard them as soon as you are able and use a plain score.