CREATE TABLE table_204_268 (id NUMBER, "album/single" CLOB, "performer" CLOB, "year" NUMBER, "variant" CLOB, "notes" CLOB)

how long was it between the release of the furrowed field and songs ?
SELECT ABS((SELECT "year" FROM table_204_268 WHERE "album/single" = 'the furrowed field') - (SELECT "year" FROM table_204_268 WHERE "album/single" = 'songs'))
SELECT ABS((SELECT "year" FROM "table_204_268" WHERE "album/single" = 'the furrowed field') - (SELECT "year" FROM "table_204_268" WHERE "album/single" = 'songs'))