When standing in front of a record player, the music will be heard very quietly, but if you move to the right of the block, it will be heard very loudly on the left side of the headphones and on the opposite side, if you have a sound block in front of you or a mob that produces a sound, the sound will be undetectable in the game unless you listen to it from the side, this also affects commands with sound effects, mobs, blocks, boss events, bells, etc.