101Leafy researched the games.
Master Bagpipe

Hunting Horn of a legendary soldier who ended a long war with a song.
| Class | Hunting Horn |
|---|---|
| Rarity | 9 |
| Attack | 1404 |
| Affinity | -5% |
| Defense | +20 |
| Slots | 1 |
| Price | 85,000z |
Upgrades
| Upgraded from | Heavy Bagpipe+ |
|---|---|
| Upgrades into | Sforzando |
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.