Factors contributing to rise in Hillbilly music (1 янв 1935 г. – 31 дек 1931 г.)
Описание:
 - Broadcast Music Incorporated
- small local radio stations needed new sources for recordings (recording bands in 1942-1943 increased this on all networks)
- Grand Ole Opry was allowed a 30 minute segment on NBC radio 
Добавлено на ленту времени:
Дата:
1 янв 1935 г.
31 дек 1931 г.
 ~ 3 years