I actually did find his flute after I played it again! Pretty fun execution of an original concept, happy to see folk inspired one shots and it looks great!
Here's my playthrough if anyone is interested!
Waaa I'm so happy, you're the first one to mention the flûte ! And your run was really cool to see, you played very well !
Thanks! Keep doing what you're doing, very cool! I really enjoyed the control scheme too!