Complex sentence: Debussy's String Quartet in G minor (1893) paved the way for his later more daring harmonic exploration, using the Phrygian mode as well as less standard scales such as the whole-tone, which creates a sense of floating, ethereal harmony.
Split into simpler sentences: Debussy's String Quartet in G minor (1893) paved the way for his later, more daring harmonic exploration. In this work he used the Phrygian mode as well as less standard scales, such as the whole-tone, which creates a sense of floating, ethereal harmony.