This Stardew Valley mod uses Content Patcher to add bone flutes as one of Abigail's liked gifts.
- Install https://smapi.io/
- Install https://github.com/Pathoschild/StardewMods/tree/stable/ContentPatcher from Nexus Mods or otherwise.
- Put the contents of this repository in
</path/to/StardewValley>/game/Mods/ - Enjoy giving gifts!