For those who don't know, Trip-hop is like a combo of hip hop and electronic music and was based in England. Popular names you'd hear are Portishead, Massive Attack, Tricky, DJ Krush, etc. I really got into it a decade ago when a friend introduced me to Portishead and they became one of my favorites. Listen to their debut album Dummy and their self titled album. Here are a couple good songs to give you an idea.