April 19

Events
 * 1928 - Harry Nyquist publishes Nyquist Sampling Theorem
 * 1965 - Gordon Moore describes Moore's Law



Births


 * 1785 – Alexandre Pierre François Boëly, French composer (d. 1858)
 * 1892 – Germaine Tailleferre, French composer (d. 1983)
 * 1928 – Alexis Korner, English musician (d. 1984)
 * 1940 – Genya Ravan, American vocalist (Goldie & the Gingerbreads, Ten Wheel Drive)
 * 1941 – Roberto Carlos, Brazilian singer
 * 1941 – Alan Price, English musician (The Animals, The Alan Price Set)
 * 1943 – Eve Graham, Scottish singer (The New Seekers)
 * 1944 – Bernie Worrell, American keyboardist (P Funk)
 * 1947 – Murray Perahia, American pianist
 * 1947 – Mark Volman, American musician (The Turtles)
 * 1953 – Rod Morgenstein, American musician (Winger)
 * 1954 – Bob Rock, Canadian record producer & musician (The Payolas)
 * 1965 – Natalie Dessay, French soprano
 * 1965 – Suge Knight, American record producer
 * 1966 – Véronique Gens, French soprano
 * 1966 – Julia Neigel, German singer, songwriter, producer, author and entertainer
 * 1967 – Dar Williams, American musician and songwriter
 * 1968 – Pascal Kleiman, Spanish DJ, producer, musician
 * 1970 – Luis Miguel, Mexican pop-singer
 * 1976 – Ruud Jolie, Dutch guitarist (Within Temptation)
 * 1989 – Fiona MacGillivray, Canadian vocalist (The Cottars)