: Best exemplified in works like Luciano Berio's Sequenza I or Edgard Varèse's Density 21.5 , where key clicks are often marked with a "+" sign over the note.
The mention of "Download," "txt," and "html" suggests a request for a digital score, a technical manual, or a programming key: Download key clik (6) txt html
The term is a notation for an extended technique used in avant-garde flute music. It involves striking the keys of the instrument forcefully to create a percussive sound without blowing into the embouchure. : Best exemplified in works like Luciano Berio's