On one occasion, Mozart evidently used his improvisational ability to bolster his limitations in sight-reading.

According to the directors of the movie, they advertised in Back Stage magazine for actors with strong improvisational abilities.

Bach was himself a prodigious talent at the keyboard, well known during his lifetime for both his technical and improvisational abilities.

Accordingly, the directors advertised in Back Stage magazine for actors with strong improvisational abilities.

They're frequently noted for their strong improvisational abilities.

As an organist, he was noted for his improvisational abilities.

The Hurricanes were unable to prevent Ward's decision-making skills and improvisational ability from becoming an important factor.

Jim Hall had incredible improvisational ability and creativity.

But for the most part the performances were about the improvisational abilities of the two leaders.

Over the last 40 or so years, jazz has cranked out thousands of albums that live or die on performers' improvisational abilities.