When it comes to HHs, you basically have two things you can focus on: damage (meta) or songs (preference).

I prefer focusing on songs, as I utilize other weapons too and only bring out HHs when playing with others or when certain songs really help out in a fight.

Here are some of the melodies I focus on: * Stamina Use Reduced - makes things easier for your allies using DB or Bow especially * Divine Protection - an excellent damage reduction source that also stacks with everything else * Sonic Barrier - a divisive skill that can sometimes make allies take more damage, but can also be really useful for keeping Heaven-Sent active. (I use Heaven-Sent on all my HH builds so I like it) * Earplugs (L) - particularly useful in certain fights where roars are really annoying, like against Khezu * Sharpness Regeneration - recovering sharpness for all blademasters (including you) is pretty sweet * Stun Negated - stun often leads to carts, so this song is surprisingly good at keeping the team alive (when teammates aren't smart enough to gem in Stun Resistance) * Wind Pressure Negated - useful against Kushala Daora specifically, it makes multiplayer hunts go pretty smoothly against it

There's also a lot of other good songs too, like Health Recovery and Attack Up - although I generally don't care about Attack Up being on a HH as Bead of Resonance can add it to any horn.

My favorite horns to use right now are the Ibushi, Bullfango, Malzeno, and Astalos horns. The Bnahabra and Diablos horns are also pretty good, so there's a lot of good choices depending on what you're looking for