Peter Warlock — English Composer born on October 30, 1894, died on December 17, 1930

Philip Arnold Heseltine, known by the pseudonym Peter Warlock, was a British composer and music critic. The Warlock name, which reflects Heseltine's interest in occult practices, was used for all his published musical works. He is best known as a composer of songs and other vocal music; he also achieved notoriety in his lifetime through his unconventional and often scandalous lifestyle... (wikipedia)

All old music was modern once, and much more of the music of yesterday already sounds more old-fashioned than works which were written three centuries ago.
All good music, whatever its date, is ageless - as alive and significant today as it was when it was written.
Music is neither old nor modern: it is either good or bad music, and the date at which it was written has no significance whatever.
Dates and periods are of interest only to the student of musical history.