AYU is an electric taisho koto with special electronic accompaniment system.
AYU is basically a electric taisho koto, it has 5 strings to play.
This unique 5 string bridge, you can play by usual guitar pick.
Hold one key of the keyboard and play each 5 string bridge by pick like guitar.
Japanese taisho koto musician often uses fast trill play,so it has same tune for the top 3 strings, 4th string is -1 octave from first 3 strings
and 5th strings is bass string (you can set it to favourite tune with a tuner).
Upper big silver block is special electronic accompaniment system, you can play koto with as many as 90 internal songs or 26 rhythms.
AYU has floppy disk drive (front side) for SMF (standard midi file) disk to play additional songs.
In the koto part, right panel has three knobs tone, koto volume, accompaniment volume
In the left panel has 5 tuning pegs, right front side has koto output, accompaniment output, ON/OFF, DC jack and floppy disk drive for SMF disk.
Bottom plate has built-in internal speaker.