This here is the instrument set that the Woodfall temple uses, instrument set 20 (0x14), in Majora's Mask. Download
Now, I have never done any sound hacking before, aside from swapping audio sequences, but I'll do my best explaining this. What's highlighted in black and green are pointers to what I'll call the sound channels (I have no idea what else to call it). Every 8 bytes here are pointers to the instrument information, which I have highlighted in black and white, and what I've highlighted in red and black is the size and location of the sounds in the audio bank.
The format pretty much goes xxyyyyyy zzzzzzzz where xx is... I don't know, yy is the size of the sound, and zz is the location of the sound in the audio bank.
So what I did in that video of mine is I extracted the sounds from Majora's Mask, added it to the audio bank, and re-pointed the locations in the instrument set.
Oh sorry. >_< I misread what you said. Also, I can't seem to find Tatl's sounds... I don't know why either.