CREATE TABLE table_203_426 (id DECIMAL, "year" DECIMAL, "title" TEXT, "peak chart positions\ aus" DECIMAL, "peak chart positions\ nz" DECIMAL, "peak chart positions\ uk" DECIMAL, "album" TEXT)

how many tracks were single only releases ?
SELECT COUNT("title") FROM table_203_426 WHERE "album" = 'single-only release'
SELECT COUNT("title") FROM "table_203_426" WHERE "album" = 'single-only release'