A harp of an amazing design with two tongues tuned to different notes. You can use the instrument in different ways: either play each tongue separately, getting two harps in one; or beat two tongues at the same time. Mixing techniques allows you to get a completely unique sound, and given the traditionally high volume and sensitivity of Glazyrin's instruments, the Duet will be an excellent addition to the collection of every lover of harps.Clearances: 10-80mkm. Base frequency: 60-90Hz. Tongue stiffness: 60-150gs. Frame stiffness: 300-400gs. Tongue size: 80x12-17mm. Overall dimensions: 110x45x4mm. Weight: 60g.