In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the alphabetical elements in the given list. Return 0 if no alphabetical element in the list
['6729', '7585', 'y', '4625', 'T', 'u', '7809', 's', 't', 'q', '4543', 'a', 'c', '2473', 'b', '7917', 'g', 'J', '3491', 'k', '4257']