Description

'Happidione' is a pentatonic musical instrument.
It has has five notes - C (Do) , D (Re) , E (Mi) ,
G (Sol) and A (La) .
'Happidione' adds under octave A(La) and up octave C(Do).
'Happidione' has seven note-buttons.
You can play 'Happidione' by touching a note-button.

Pentatonic is a wonder scale.
They keep a harmony however you play this instrument.
Please play freely.
'Happidione' will make you Happy maybe.