Slowcore, also known as sadcore, is a subgenre of indie rock characterised by subdued tempos, minimalist instrumentation, and calm, sombre vocal performances. The genre began in the 1980s and 1990s, with several bands forming in reaction to the abrasive sounds of grunge. Slow rock music, with a pensive style inspired by genres such as singer-songwriter and folk, laid the groundwork for the genre in the early years.