After encountering Donna Beneviento and Angie, you’ll come across Luthier’s Key in the Gardener’s Shack, which can be used to access The Maestro’s Collection. This is another treasure that can be found on your map, and this section of IGN’s Resident Evil Village Wiki Guide details where to find it and what’s inside.
Collect Luthier’s Key
You can now head up through a nearby gate on the left to reach the Gardener’s House (the same gardener who left a note about the locked house in the Village).
Inside the house is a Save Point, Luthier’s Key to the village house, a Gardener’s Diary File by the bed, and some Explosive Rounds.
Unlock Luthier’s Door to the Maestro’s Collection
Now that you have obtained Luthier’s Key from the Gardener’s Shack near House Beneviento, you can now return to West Old Town and unlock the door for it. The house is located near the house with a red chimney.
The main treasure here is located in a cabinet with a combination lock, so you’ll need to look around for clues. There’s a paper with the model number of a violin – but ignore that and instead look on the same table for a scrap of paper that says “I will never forget her fifth birthday”.
Head to the kitchen and look in the corner to spot a small happy birthday drawing with a date on it: 27, 09, 17. Input it into the combination lock, and you’ll find both a Steel Hraesvelgr treasure and a chest with an F2 Rifle – High-Capacity Mag, which you can combine into your rifle!