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 beautiful tones from the first octave's C to the third octave's F. After testing it, I ended up using a flute in a different key and have kept this one in storage, so I would be happy if someone could use it. Number of holes: 6 Length: Approximately 40cm Material: Bamboo Maker: Kodama-bue (Echo Flute)