Among the artists from 1980 to 1982. Which artist was tagged as "disco"?
from 1980 to 1982 refers to groupYear between 1980 and 1982; tag = 'disco';
SELECT T1.artist FROM torrents AS T1 INNER JOIN tags AS T2 ON T1.id = T2.id WHERE T2.tag = 'disco' AND T1.groupYear BETWEEN 1980 AND 1982