How do you obtained the poke flute on Pokemon leaf green?

ok you obtained the bike go to safron if the team rocket guy is asleep go in the tallest building and get the sliph scope and go back to Pokemon tower and go up every floor and cubone's mother will be there battle it and go upstairs and beat all the roket guys and go to fuji and he will give you the poke Flute
You need to get to the top of Pokemon tower and talk to mr fuji after defeating team rocket, he gives you the pokeflute at his house.