Pitch Pipe (Pipe)For Tuning Of Gagaku Instruments Pitch pipe for gagau with oujiki (fundamental tone) at 430Hz. It sounds by inhaling. Rotating each pipe, you can check the sounds of chords. It can be used for not only tuning but singing of practice. There are 2 types, round type and pipe type. Size: 7. 3cm (About 3in) x 1cm (About 0. 5in) Weight: 50g Contents: Pitch Pipe Case Instruction Manual Order Processing Time: About 7 30 Business Days