101Leafy researched the games.
Heavy Bagpipe+

Vastly improved version of its previous incarnation known for its abilities.
| Class | Hunting Horn |
|---|---|
| Rarity | 7 |
| Attack | 1144 |
| Affinity | -5% |
| Defense | +20 |
| Slots | 1 |
| Price | 60,000z |
Upgrades
| Upgraded from | Heavy Bagpipe |
|---|---|
| Upgrades into | Master Bagpipe |
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 732.