"Did you know that Nancarrow once wrote a piece of musique concrete, and that he has three new player-piano pieces that aren't recorded yet? I hope someone finds that as fascinating as I find the extensive home page for 19th-century Russian composer Cesar Cui, or the Transcribing and Reading White Mensural Notation home page with examples from Petrucci's Odhecaton of 1501."
An autograph manuscript:
A musical letter of Cui to Madame Mar'ia Kerzina, with text: "Greetings to the dear Kerzin home!"
Source: Izbrannye pis'ma (Leningrad, 1955)