Fart

1. [impulse] /scoreboard objectives add sneak minecraft.custom:minecraft.sneak_time

2. [repeat] /execute as @a at @s if score @s sneak matches 1..9 store result score @s sneak run random value 10..110

3. [chain] /execute as @a at @s if score @s sneak matches 10 run playsound minecraft:block.note_block.trumpet_oxidized ambient @a ~ ~ ~ 1 1

4. [chain] /execute as @a at @s if score @s sneak matches 10 rotated ~ 0 run particle minecraft:dust_color_transition{from_color:[0,1,0],to_color:[.25,.75,.25],scale:1} ^ ^.5 ^-.5 .1 .1 .1 1 1 normal

5. [chain] /execute as @a at @s if score @s sneak matches 1.. run scoreboard players reset @s sneak