What are the key characteristics of bass music and how has it evolved over time?

Bass music is known for its heavy emphasis on low-frequency sounds, such as basslines and sub-bass. It often features syncopated rhythms and a focus on the "drop" - a sudden, intense bass-heavy section. Over time, bass music has evolved to incorporate elements from various genres like Dubstep, trap, and drum and bass, leading to a diverse range of subgenres and styles within the bass music umbrella.