In the 20th century, the prevalent music drifting into oneâs ears was heavily dependent upon location. The city you lived in could strongly predict what genres of music you either created or consumed. These location based genre constraints were largely imposed by the technology of the time period. The dissemination and proliferation of records across city, state, or country lines were exceedingly limited due to the physicality required to interact with any one piece of music. Listeners and musicians alike only being exposed to music they could get their hands on in the immediate vicinity of their place of residency. This is what brought rise to sounds consigned to specific locations from which entire sociological subgenres stem; there were cultures, movements, and communities built entirely around local music scenes.