Can we draw the following hypothesis from the context? 

Context:

Franz Liszt, a Hungarian composer who lived from 1811 to 1886 was the equivalent of a rock star in his day. His piano compositions were extremely popular and he often gave concerts to his multitude of fans. Liszt was also the pioneer of many musical techniques, including the symphonic poem and the technique of transforming themes.

Hypothesis: Liszt is really popular.
Yes