HELP! I can't use the Whistle (Recorder)!

Here's a link that should help you whistle warp

I had this problem too. (it actually wasn't a problem since i didn't want the whistle to work that way. i just couldn't figure out why it didn't work.)

The whistle will only warp you if you are on a dmap whose level is zero (and probably you also have to warping to a 0 level dmap). Also, you can set up the dmap warp positions in zquest. when you do this you will designate warp positions 1-8 i believe. you will only warp to a posisiton when you've found its respective triforce. So you will warp to 5 say when you get the triforce from level 5.

It's a common mistake to forget that you need to have triforce pieces for the whistle warps to work.