CREATE TABLE table_68519 ("Artist" TEXT, "Country of origin" TEXT, "Period active" TEXT, "Release-year of first charted record" FLOAT, "Genre" TEXT, "Claimed sales" TEXT)

Name the genre for release-year of first charted record of 1988
SELECT "Genre" FROM table_68519 WHERE "Release-year of first charted record" = '1988'
SELECT "Genre" FROM "table_68519" WHERE "Release-year of first charted record" = '1988'