Arbitrary song WW heap setup steps and requirements

GCJ
801F8AD0 Cutscene pointer
Load Jabu normally (not from death)
Chu switch at start of Jabu
Enter elevator room
Break right box, collect rupee/heart, drop 1 bomb before entering room with Ruto
Watch Ruto cutscene for 801F8AD0 as your cutscene pointer

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801F8CD0 actorZ (+0x200)
Die to load Zora's Domain
Load top room
Load bottom room
Pull bomb @801F8CD0

Y Rotation on last frame: +0x5BE, 801F8D16
This must point to a cutscene terminator (0xFFFFFFFF) when multiplied by 0x30 and added to 801F8D18. In this instance we end up @8020A0B8 which is part of Ruto's stale actor data from Zoras' Domain.

Z coord float: +0x2C, 801F8CFC
XXXX0002

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801F8B60 item00 (+0x90)
Load Deku Tree normally (not from death)
Break 2 bushes for 2 item00
Drop Bomb1
Drop 2 Chus
Kill a Deku Baba for 1 item00 @801F8B60, @CSP + 0x90
Pick up the other item00s to avoid Chus overwriting stale actorZ data when exploding

item00 bump y & z position: +0x198, 801F8CF8
001AXXXX (XXXX must be less than ActorZ high order halfword of Z coord float, unsigned)
The significant halfword determines which song will be learned, and the lesser significant halfword determines when the note staff textbox will appear.

0F    Play back Minuet (Gives song if successful)
10    Play back Bolero (Gives song if successful)
11    Play back Serenade (Gives song if successful)
12    Play back Requiem (Gives song if successful)
13    Play back Nocturne (Gives song if successful)
14    Play back Prelude (Gives song if successful)
15    Play back Saria's Song (Gives song if successful)
16    Play back Epona's Song (Gives song if successful)
17    Play back Zelda's Lullaby (Gives song if successful)
18    Play back Sun's Song (Gives song if successful)
19    Play back Song of Time (Gives song if successful)
1A    Play back Song of Storms (Gives song if successful)

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801F8AD0 Bomb@CSP allocation:
Load Deku normally (not from death)
Drop Chu1
Drop Bomb1
Pull Seed1
Shoot Seed1
Pull Seed2
Pull Bomb2 @CSP(801F8AD0)

Y Rotation when pulled: +0x16, 801F8AE6
0x0009

Bomb explosion sphere center and radius +0x1D8, 801F8CA8
00000013 00000008 (Second frame of explosion for 08 timer)