Complex sentence: One of the most popular German concert violinists of the 1930s and 1940s, he was considered one of the finest violinists of the 20th century and known for his interpretations of works from the Romantic period.
Split into simpler sentences: One of the most popular German concert violinists of the 1930s and 1940s, he was considered one of the finest violinists of the 20th century. Kulenkampff was best known for his interpretations of works from the Romantic period.