Final answer:
Vivaldi was a virtuoso of the violin, which is the dominant instrument in his concertos, reflecting the Baroque period's emphasis on string instruments, particularly before the advancements in wind instruments during the Industrial Revolution.
Step-by-step explanation:
Vivaldi was renowned for his mastery of the violin, and it is the instrument that takes the spotlight in his concertos. As a Baroque composer, Vivaldi utilized the violin's capabilities to showcase its dynamism and expressiveness. The violin, with its versatile range and emotive power, plays a prominent role in Baroque music, often serving as the leading voice in concertos.
String instruments like the violin were crucial during the Baroque period, but as the Industrial Revolution progressed, there were significant improvements in woodwinds and brass instruments, leading to their greater presence in orchestral compositions.