Before autumn of 1880.
Only in recent times.
Voice and Piano.
Magri 1974, pp. 293-294; Kaye 1987, p. 3; Morini 1975, pp. 28-29; Magri 1999, pp. 141-144; Pecci 2010, p. 14; Pecci 2025, pp. XV, XXV, XXXVII, 53, 63, 73-74.