101Leafy researched the games.
AncientDrgnwoodFlute

Only Dragonwood Horns can play holy music. Enchanting music soothes the heart.
| Class | Hunting Horn |
|---|---|
| Rarity | 9 |
| Attack | 988 |
| Paralysis | 240 |
| Slots | 2 |
| Price | 120,000z |
Upgrades
| Upgraded from | Spirit Dragonwd Horn |
|---|---|
| Upgrades into | DivineAncDrgnwdFlute |
Can also be made new at the smithy.
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 742.
Materials
AncientDrgnwood ×6, AncientDrgnmoss ×2, YamaTsukaFillet ×2, Thunderbug Jelly ×10