In Monster Hunter World, the Hunting Horn has received an additional level of Attack and Defense boosts, plus various attack and affinity boosts from different sources have undergone balancing so attack is not always preferable to affinity. With that said, it's unlikely that the Hunting Horn's melodies have gone untouched, but I can't find any numbers on the matter.

How large are the various buffs that a Hunting Horn's melodies can provide? Specifically, I'm asking about Attack Up (S/M/L/XL), Defense Up (S/M/L/XL), Affinity Up (S/M), Elemental Attack Boost, and Abnormal Status Attack Increased.

In Monster Hunter World, various attack and affinity boosts from different sources have undergone balancing so attack is not always preferable to affinity. With that said, it's unlikely that the Hunting Horn's melodies have gone untouched, but I can't find any numbers on the matter.

How large are the various buffs that a Hunting Horn's melodies can provide? Specifically, I'm asking about Attack Up (S/L/XL), Defense Up (S/L/XL), Affinity Up (S/L), Elemental Attack Boost (S/L), and Abnormal Status Attack Increased (S/L).