def my_mp3_playlist(file_path):
    file_input = open(file_path, "r")
    longest_song = ""
    artist = ""
    new_list = []
    counter = 0
    new_list = list()
    for line in file_input:
        counter += 1
        line = line.split(";")
        if line[2] > longest_song:
            longest_song = line[2]
        if line[1] not in new_list:
            new_list.append(line[1])
        if line[1] in new_list:
            artist = line[1]
    file_input.close()
    file_input = open(file_path, "r")
    for line in file_input:
        line = line.split(";")
        if longest_song in line:
            longest_song = line[0]
    file_input.close()
    return (longest_song, counter, artist)