Poor Predictions
The works of
Johann Sebastian Bach (1685-1750) were rarely performed until the 19th century.
Sergei Rachmaninov (1873-1943) was considered irrelevant by many of his contemporaries because of his use of traditional harmonies and tonality.
Josquin des Prez (1455-1521) was considered one of the greatest composers of his time. When was the last time you heard something written by him?
The music of
Frédéric Chopin (1810-1849) was initially considered excessively dissonant.
Predictions are tricky. The future is not readily known. Many trends which seem strong now are only passing fads.