how many albums are performed by martin carthy or ewan maccoll ?
CREATE TABLE table_204_268 (
    id number,
    "album/single" text,
    "performer" text,
    "year" number,
    "variant" text,
    "notes" text
)
SELECT COUNT("album/single") FROM table_204_268 WHERE "performer" IN ('martin carthy', 'ewan maccoll')
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 many albums are performed by martin carthy or ewan maccoll ? ### Input: CREATE TABLE table_204_268 (
    id number,
    "album/single" text,
    "performer" text,
    "year" number,
    "variant" text,
    "notes" text
) ### Response: SELECT COUNT("album/single") FROM table_204_268 WHERE "performer" IN ('martin carthy', 'ewan maccoll')