In literature, the word “brass” is deployed in a remarkably versatile manner, often oscillating between literal and metaphorical applications. It is used to describe physical materials—ranging from musical instruments and decorative fixtures [1, 2] to utilitarian items such as dinner-bells and vessels [3, 4]—thereby evoking a sense of durability and enduring luster. At the same time, “brass” functions symbolically to characterize boldness or audacity, as seen when it underscores revolutionary spirit or even becomes a moniker for certain characters whose names resonate with their distinctive attributes [5, 6, 7]. This dual usage highlights the capacity of “brass” to simultaneously anchor a narrative in tangible reality and suggest deeper, figurative meanings that enrich a text’s aesthetic and thematic layers [8, 9].