G. tunable
We have tuned the pan flute before we posted it, the intonation is standard, you can play it immediately, you only need to tune it when the season changes, usually in summer and winter. The tuning sticks with calibration can help you tune without a tuner.
The pan flute can be tuned to all sounds, you can use the tuning sticks with calibration to tune them to tone G or tone C.