I'm bored and listening to some Zelda music, so, it's time for an incredibly specific poll thread.
What I'm referring to as "standard battle music" is the music that plays when you go near any enemy in the game. As a result, it's a theme you end up hearing a lot, and if it isn't good it is quite often a nuisance as it takes you away from the normally better overworld music (Breath of the Wild escapes this issue, I guess). Only 3D Zeldas have had a theme playing in this situation, so there are only 6 options here.
Ocarina of Time:
https://www.youtube.com/watch?v=XhW_UT9_TBE
Majora's Mask:
https://www.youtube.com/watch?v=9aWkaMI2fGc
The Wind Waker:
https://www.youtube.com/watch?v=SRGii05yILI
Twilight Princess:
https://www.youtube.com/watch?v=q_UfpEE2hWA
https://www.youtube.com/watch?v=UgX6Qhf3gj8
Skyward Sword:
https://www.youtube.com/watch?v=S1-jRQg8icw
Breath of the Wild:
https://www.youtube.com/watch?v=S2cB5Pufav8
Battle.