### Database Schema:
CREATE TABLE tags (
	index	INTEGER	NULL	PRIMARY KEY,
	id	INTEGER	NULL,
	tag	TEXT	NULL,
	foreign key (id) references torrents (id)
);

CREATE TABLE torrents (
	groupName	TEXT	NULL,
	totalSnatched	INTEGER	NULL,
	artist	TEXT	NULL,
	groupYear	INTEGER	NULL,
	releaseType	TEXT	NULL,
	groupId	INTEGER	NULL,
	id	INTEGER	NULL	PRIMARY KEY
);

### User's Query:
Among the artists with the id from 10 to 30. Which artist released the product with the tag "funk" in 1980?

### Extra Knowledge:
id from 10 to 30 refers to id between 10 and 30; groupYear = 1980;
SELECT T1.artist FROM torrents AS T1 INNER JOIN tags AS T2 ON T1.id = T2.id WHERE T2.tag = 'funk' AND T1.groupYear = 1980 AND T1.id BETWEEN 10 AND 30