CREATE TABLE performance (songid NUMBER, bandmate NUMBER, stageposition CLOB)
CREATE TABLE instruments (songid NUMBER, bandmateid NUMBER, instrument CLOB)
CREATE TABLE albums (aid NUMBER, title CLOB, year NUMBER, label CLOB, type CLOB)
CREATE TABLE band (id NUMBER, firstname CLOB, lastname CLOB)
CREATE TABLE tracklists (albumid NUMBER, position NUMBER, songid NUMBER)
CREATE TABLE songs (songid NUMBER, title CLOB)
CREATE TABLE vocals (songid NUMBER, bandmate NUMBER, type CLOB)

What is the vocal type of the band mate whose first name is 'Marianne' played the most?
SELECT type FROM vocals AS T1 JOIN band AS T2 ON T1.bandmate = T2.id WHERE firstname = "Marianne" GROUP BY type ORDER BY COUNT(*) DESC LIMIT 1
SELECT "type" FROM "vocals" "T1" JOIN "band" "T2" ON "T1"."bandmate" = "T2"."id" WHERE "Marianne" = "firstname" GROUP BY "type" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY