Pan's Flute - Prototype Review

The Pan’s Flute controller uses the notes made by blowing through the pipes on the controller to control directional movement in the rhythm rogue like game Crypt of the Necrodancer. Given the high fantasy nature of the game, I decided to go with a pan flute design as opposed to a western concert flute, so as to push the theming parallels between the controller and the game itself. Right now, this controller only uses one pipe and therefore can only move in one direction, as I was figuring out how to set up the piezo sensor via code and circuit. It’s still somewhat sensitive, but after I tweak this some more and add more pipes to my controller, it should work seamlessly.

QUESTIONS:

1)    Should there be sound output when a player “plays” a note into the pipe?

2)    How can I improve on the comfortability of a player using this controller?