It took me 60hrs to realize you can play all hunting horn songs while mounted on the seikret. My teammates probably thought I was dumb for not playing songs while riding.
I also didn't know they added a buff where if you get perfect timing on the wound break with focus attack you get a 6th note with echo bubble. It's literally not even mention anywhere in the hunter notes. I only found out because I watched a speed runner and wanted to see how he dodges certain moves from a monster.

Does this happen to you and your weapon? Why didn't they update the hunter notes in game to include this information... It's not a small indie company