my query donsn't return any record

Who knows what the problem is? 

PHP Code:

SELECT `track`.`id`, `track`.`artist_id`, `track`.`genre_id`, `track`.`title`, `track`.`cover`, `track`.`exclusive`, `track`.`count_download`, `track`.`url`, `artists`.`id` `artid`, `artists`.`artist_name`, `g`.`id` `gid`, `g`.`name`
FROM `track`
JOIN `artists` ON `artists`.`id` = `artist_id`
JOIN `genres` AS `g` ON `g`.`id` = `genre_id`
WHERE LOWER(track.title) LIKE 'Bass%'