how od was alberto ginastera when he died ?
CREATE TABLE table_204_748 (
    id number,
    "composer" text,
    "born" number,
    "died" number,
    "nationality" text,
    "notable works for piano" text,
    "remarks" text
)
SELECT "died" - "born" FROM table_204_748 WHERE "composer" = 'alberto ginastera'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: how od was alberto ginastera when he died ? ### Input: CREATE TABLE table_204_748 (
    id number,
    "composer" text,
    "born" number,
    "died" number,
    "nationality" text,
    "notable works for piano" text,
    "remarks" text
) ### Response: SELECT "died" - "born" FROM table_204_748 WHERE "composer" = 'alberto ginastera'