"L'emozione non ha voce" (Emotion has no voice) is characterized by its slow, rhythmic build and an iconic melody that demands a "cantabile" (singing) style on the piano.
To get the most accurate version of the "spartito," consider these avenues:
Scribd or Musescore often host user-uploaded versions. Look for arrangements by "Gianni Bella" to ensure the chord progressions are authentic.
Only download PDFs from reputable sheet music archives.