Sonata No. 2, commissioned by Bokyung Byun and composed in 2024, is the most extensive solo guitar sonata I have written to date, comprising five movements. The work is characterized by its flashy, mysterious, dark, and highly virtuosic nature, making it an ideal piece for both competitions and concert performances. While the third movement, Scherzo-Trio, may be performed independently, or the first, fourth, and fifth movements may be selected for time-constrained programs, it is recommended to perform the entire sonata, as the movements are closely interconnected.