After reaching the top of Pokemon tower defeat team rocket then talk to mr fuji he will take you to his house talk to him again to get the poke Flute.
I'm pretty sure one of oaks little aides gives it to you if you've caught a certain amount of Pokemon.
go find oaks aides they are usually upstairs in those passage rooms
you get poke flute from guy in top of poke tower
the poke flute in lavender town in the Pokemon tower keep going up you will see srees but it will say go a way
To move the snorlax, you need a poke flute. You get the poke flute from the old man in Pokemon Tower his house is in the same town as the Pokemon Tower
You have to get to the top of the Pokemon tower and get the poke flute from mr fuji and when you see a sleeping snorlax like bike road hill click on it and play the poke flute or go to the Safari zone and catch one. It will sleep so it's easier to catch. P.S If you want to catch a snorelax in safari zone, you must go very deep. You got 2 chances to catch it at the road using Pokemon flute.
you have to use a poke flute
mr. fuji gives you the poke flute when you rescue him from team rocket at the Pokemon tower
Work your way to the top of the Pokemon Ghost Tower and defeat the Rocket Grunts.
Get it from Fugi who at the top of the tower in Lavender town
You have to get the poke flute, which you have to get from Mr. Fiji who is in Laverndar town.
The Poke Flute wakes up sleeping Pokemon, and was a key item in Pokemon Red, Blue, Yellow, FireRed, and LeafGreen. It could be used in or out of battle. The Blue Flute, however, as far as I can tell, only wakes up one Pokemon. I hope this helped.
you get it by gettting threw the Pokemon tower in lavender town but first you need to get the silph scope
You can find the Poke Flute in the Pokemon Tower. After you free Mr. Fuji, he will give you the Poke Flute.