Then, he will ask you to search for his roster and gives you Phoenix Tower as a hint. Instead, talk to the Farming Merchant at X:579 Y:521 and buy a Hay Hoe for 300 gold. (Instance uses 100 durability on the Hay Hoe)
FIGHT: Now head to the Pile of Dirt at X:337 Y:217, in the north part of Swan Lake Basin. A plot event will begin and you will have to defeat 3 Black Baby Bow-Wows (all level 25 non-elemental Dancers). After killing them you will receive the Rumble Rhythms Roster.
Deliver the roster to Long and receive your rewards.