Navrátil studied in Vienna with Guido Adler (music theory) and Karel Ondříček (violin), and went on to become a music critic in the Austrian capital. After 1915 he returned to Prague where he worked as a music teacher and a freelance composer. His compositions include two operas, a symphony and five symphonic poems, two piano concertos and a violin concerto, chamber music and piano pieces, choral works and songs, although very few of these have been published.
Correspondence with Tchaikovsky
1 letter from Tchaikovsky to Karel Navrátil has survived, dating from 1891, and has been translated into English on this website: