Underground hip hop is an umbrella term for hip hop music outside the general commercial canon. It is typically associated with independent artists, signed to independent labels or no label at all. Underground hip hop is often characterized by socially conscious, positive, or anti-commercial lyrics. However, there is no unifying or universal theme – AllMusic suggests that it “has no sonic signifiers”. “The Underground” also refers to the community of musicians, fans and others that support non-commercial, or independent music. Music scenes with strong ties to underground hip hop include alternative hip hop and conscious hip hop. Many artists who are considered “underground” today were not always so, and may have previously broken the Billboard charts.To gain fans, underground artists perform locally and worldwide, make tours, and meet and greets. Their performances are held anywhere, such as outdoors or in restaurants. Meet and greets are often held in different cities, which gives a fan the opportunity to meet the artist for free. There the fan can buy clothing from the artist’s clothing line or they can purchase tickets for future concerts. Ticket prices range depending on the location, some artists have VIP passes, allowing the fan to have access to the stage and to meet them after the show. Some artists make their own clothing line to sell gear and use the profit to continue making shows. Underground artists are usually found in YouTube, SoundClick, Bandcamp and SoundCloud. Lastly, underground artists typically do everything themselves whether it’s making songs, preparing shows, or selling gear.

Electronic dance music (EDM), also known as dance music, club music, or simply dance, is a broad range of percussive electronic music genres made largely for nightclubs, raves and festivals. It is generally produced for playback by disc jockeys who create seamless selections of tracks, called a mix by segueing from one recording to another. EDM producers also perform their music live in a concert or festival setting in what is sometimes called a live PA. In Europe, EDM is more commonly called ‘dance music’, or simply ‘dance’.In the late 1980s and early 1990s, following the emergence of raving, pirate radios and an upsurge of interest in club culture, EDM achieved widespread mainstream popularity in Europe. In the United States at that time, acceptance of dance culture was not universal; although both electro and Chicago house music were influential both in Europe and the United States, mainstream media outlets and the record industry remained openly hostile to it. There was also a perceived association between EDM and drug culture, which led governments at state and city level to enact laws and policies intended to halt the spread of rave culture.Subsequently, in the new millennium, the popularity of EDM increased globally, largely in Australia and the United States. By the early 2010s, the term “electronic dance music” and the initialism “EDM” was being pushed by the American music industry and music press in an effort to rebrand American rave culture. “Despite the industry’s attempt to create a specific EDM brand, the initialism remains in use as an umbrella term for multiple genres, including house, techno, trance, drum and bass, dubstep, and Trap music (EDM) as well as their respective subgenres.[5][6][7][8][9]”

A trap is a mechanical device used to capture or restrain an animal for purposes such as hunting, pest control, or ecological research.
Trap may also refer to:

Alternative rock (also called alternative music, alt-rock or simply alternative) is a style of rock music that emerged from the independent music underground of the 1980s and became widely popular in the 1990s. In this instance, the word “alternative” refers to the genre’s distinction from mainstream rock music. The term’s original meaning was broader, referring to a generation of musicians unified by their collective debt to either the musical style or simply the independent, DIY ethos of punk rock, which in the late 1970s laid the groundwork for alternative music. At times, “alternative” has been used as a catch-all description for music from underground rock artists that receives mainstream recognition, or for any music, whether rock or not, that is seen to be descended from punk rock (including some examples of punk itself, as well as new wave, and post-punk). Although the genre evolved in the late 1970s and 1980s, music anticipating the sound of the genre can be found as early as the 1960s, with bands such as The Velvet Underground.
Alternative rock broadly consists of music that differs greatly in terms of its sound, social context and regional roots. By the end of the 1980s, magazines and zines, college radio airplay, and word of mouth had increased the prominence and highlighted the diversity of alternative rock, helping to define a number of distinct styles (and music scenes) such as noise pop, indie rock, grunge, and shoegaze. Most of these subgenres had achieved minor mainstream notice and a few bands representing them, such as Hüsker Dü and R.E.M., had even signed to major labels. But most alternative bands’ commercial success was limited in comparison to other genres of rock and pop music at the time, and most acts remained signed to independent labels and received relatively little attention from mainstream radio, television, or newspapers. With the breakthrough of Nirvana and the popularity of the grunge and Britpop movements in the 1990s, alternative rock entered the musical mainstream and many alternative bands became successful.

Hardcore hip hop (also hardcore rap) is a genre of hip hop music that developed through the East Coast hip hop scene in the 1980s. Pioneered by such artists as Run—D.M.C., Schoolly D, Boogie Down Productions and Public Enemy, it is generally characterized by anger, aggression, and confrontation.

Trip hop (sometimes used synonymously with “downtempo”) is a musical genre that originated in the early 1990s in the United Kingdom, especially Bristol. It has been described as “a fusion of hip hop and electronica until neither genre is recognizable”, and may incorporate a variety of styles, including funk, dub, soul, psychedelia, R&B, and house, as well as other forms of electronic music. Trip hop can be highly experimental.Deriving from later idioms of acid house, the term was first used by the British music media to describe the more experimental variant of breakbeat emerging from the Bristol Sound scene in the early 1990s, which contained influences of soul, funk, and jazz. It was pioneered by acts like Massive Attack, Tricky, and Portishead. Trip hop achieved commercial success in the 1990s, and has been described as “Europe’s alternative choice in the second half of the ’90s.”