CREATE TABLE table_204_643 (id DECIMAL, "release" DECIMAL, "artist" TEXT, "title" TEXT, "notes" TEXT, "album" TEXT)

what was the album released immediately before the one that had boku wa do kana on it ?
SELECT "album" FROM table_204_643 WHERE id = (SELECT id FROM table_204_643 WHERE "title" = 'boku wa do kana (僕はとうかな what should i do?)') - 1
SELECT "album" FROM "table_204_643" WHERE "id" = (SELECT "id" FROM "table_204_643" WHERE "title" = 'boku wa do kana (僕はとうかな what should i do?)') - 1