Changing sounds
Those sounds are annoying
Wanna turn off the sounds for the Taterzen? Simply type
/npc edit tags allowSounds false
this will mute Taterzen.
Changing global sounds
You'll need to open config file found in
.minecraft/config/Taterzens/config.json.
Open it with any text editor (although I recommend something like Notepad++) and edit the following values:
"death_sounds": [
    "my.custom.sound",
    "another.custom.sound"
],
"hurt_sounds": [
    "entity.player.hurt"
],
"ambient_sounds": []
Empty array ([]) means no sound. If there is more
than one sound, it will be chosen randomly.