Bass music is a term used to describe several genres of electronic dance music and hip hop music arising from the 1980s on, focusing on a prominent bass drum and/or bassline sound. As one source notes, there are "many different types of bass music to fall into, each putting a different spin on one of music's loudest elements". Typically, the bass sound is created using synthesizers and drum machines like, for example, the influential Roland TR-808. Electronic dance music genres of this type may include: Hip hop genres of this type may include: * Miami bass