SELECT CONCAT('title: ', title, ', price1: ', price1)
FROM my_table
WHERE price1 BETWEEN 30 AND 60
UNION
SELECT CONCAT('title: ', title, ', price2: ', price2)
FROM my_table
WHERE price2 BETWEEN 30 AND 60
UNION
SELECT CONCAT('title: ', title, ', price3: ', price3)
FROM my_table
WHERE price3 BETWEEN 30 AND 60