Compose a Chinese Jiangnan-style folk song titled "青瓦词" (The Blue Tile Lyric). **Mood & Imagery:** Evoke the feeling of a gentle stroll through a misty, rainy Suzhou watertown. Picture ancient canals, stone bridges, and raindrops dripping from blue-tiled eaves. The mood is tranquil, nostalgic, and poetic. **Instrumentation:** - **Core:** Fingerstyle Acoustic Guitar, Pipa, Guzheng, Bamboo Flute. - **Support:** Erhu (used sparingly for emotional depth). **Melody & Vocal:** The melody should be flowing and gentle, based on the Pentatonic scale, with soft rises and falls like drifting rain. The vocal should be a warm, clear male voice with a subtle Jiangnan minor inflection—graceful and slightly melancholic, not powerful.