Liszt links the various sections of the piece together with intricate patterns of scales and arpeggios ascending high into the upper register , descending back down and magically transforming back into the beautiful melody ; these require a flawless technique at the keyboard to properly execute .
Liszt links the various sections of the piece together with passages of intricate scale and arpeggio patterns ascending high into the upper register , descending back down and magically transforming back into the beautiful melody , this allows the whole piece to flow as one . 
 These complex passages require a flawless technique at the keyboard to properly execute .