Bruno Mars, the credited artist behind the sound It Will Rain, carries an associated country of Indonesia and is categorized under three sequential other genre designations, marking it as a work that resists alignment with the standard, widely recognized genre buckets that shape most music classification systems across the global music industry. For decades, formal music classification frameworks have relied on a set of broadly agreed-upon terms to group sounds by shared origins, sonic traits, cultural contexts, or audience bases, terms that range from global mainstream categories like pop, R&B, rock, and country to region-specific designations that capture distinct local musical traditions that carry their own histories, fan bases, and sonic identities.