What is the last name of the musician that have produced the most number of songs?
CREATE TABLE Band (
    lastname VARCHAR,
    id VARCHAR
)

CREATE TABLE Performance (
    bandmate VARCHAR,
    SongId VARCHAR
)

CREATE TABLE Songs (
    SongId VARCHAR
)
SELECT T2.lastname FROM Performance AS T1 JOIN Band AS T2 ON T1.bandmate = T2.id JOIN Songs AS T3 ON T3.SongId = T1.SongId GROUP BY lastname ORDER BY COUNT(*) DESC LIMIT 1
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: What is the last name of the musician that have produced the most number of songs? ### Input: CREATE TABLE Band (
    lastname VARCHAR,
    id VARCHAR
)

CREATE TABLE Performance (
    bandmate VARCHAR,
    SongId VARCHAR
)

CREATE TABLE Songs (
    SongId VARCHAR
) ### Response: SELECT T2.lastname FROM Performance AS T1 JOIN Band AS T2 ON T1.bandmate = T2.id JOIN Songs AS T3 ON T3.SongId = T1.SongId GROUP BY lastname ORDER BY COUNT(*) DESC LIMIT 1