The phrase identifies an individual recognized for extraordinary skill and influence on the instrument. Such a designation implies mastery of technique, innovative approaches to musical expression, and a lasting impact on subsequent generations of musicians. For example, nominations for halls of fame frequently spark debate centered on these criteria.
Determining such an individual has significant cultural and artistic value. It establishes benchmarks for musical excellence, inspires aspiring musicians, and shapes the evolution of instrumental performance. Historical context is crucial because evolving technologies and musical styles influence the assessment process and perception of virtuosity.