This flute is tuned to 442Hz equal temperament and produces a very accurate do-re-mi scale, like a flute. The mouthpiece is slightly smaller than a typical shinobue flute, making it easier for women to play, and it produces clear tones from the first octave's do to the third octave's mi. After testing it, I ended up using a flute of a different key and it has been in storage ever since, so I would be happy if someone could use it. Number of holes: 6 Length: 40cm Material: Bamboo Maker: Kodama-bue (Echo Flute)