Most of the music does not play at a matching volume in game, even the same tracks play with different volume based on the biome. Due to this, players need to adjust the volume inconveniently for each situation, this issue affects other dimensions too.

Steps to reproduce: (edited from MCPE-158157)

1. Locate biomes with different music like a plains, desert, swamp and mountain.
2. Let music cycle between different tracks without adjusting volume.

Expected behavior:
All music tracks are similarly mixed for volume, barring the normal dynamic range of the track.

Observed behavior:
Different tracks play at very different volumes.

Alternate steps:

1. Open
   C:\Program Files\WindowsApps\Microsoft.MinecraftUWP_1.19.202.0_x64_8wekyb3d8bbwe\data\resource_packs\vanilla(1.18.0, 1.19.0, 1.20.0, 1.20.30, 1.21.0)\sounds\sound_definitions.json
2. Search the file for "music" to find the "music.game..." sections.
3. Observe the "volume" settings for the music tracks.

A simple way to fix this is by changing the volume of every music sound event on the json file (music.game...) to better match java edition, from what i know (correct me if i am wrong), only in a few specific cases the volume is set in java edition, making all tracks sound relatively the same in game.

Based on the json files, this is the difference of the volume on java and bedrock, i assume that what do not include a number is set at it loudest, for some of the tracks this is probably intended, the names are from bedrock edition, java changed all of the names recently.

The sound events on the sound_definitions.json affected by this are:

music.menu

music.game

music.game.creative

music.game.water

music.game.nether

music.game.end

music.game.endboss

music.game.credits

music.game_and_wild_equal_chance

music.game_and_wild_favor_game

music.game.swamp_music

In other sound events not mentioned above, these same tracks all have the same volume as java edition.

The difference between java and bedrock values on the sound.definitions.json can be seen on this minecraft wiki page: https://minecraft.wiki/w/Sounds.json