Spiral curve type music sheet, apparatus and method for providing spiral curve type music sheet

A method of providing a spiral curve type music sheet implemented by an apparatus for providing a spiral curve type music sheet, the method comprising:

• maintaining a spiral curve type music sheet, in which different notes are displayed at different positions on a spiral curve based on a pitch of a note, and note data in a memory in the apparatus for providing a spiral curve type music sheet;
• and
• determining a note symbol position related to the note data on the spiral curve in the spiral curve type music sheet based on a frequency of the note data in the apparatus for providing a spiral curve type music sheet,
• wherein the spiral curve type music sheet matches a two-dimensional polar coordinate complex plane, and
• the determining of the note symbol position includes calculating a magnitude and a phase angle of the note data in the polar coordinate complex plane based on the frequency of the note data, and determining a point on the spiral curve corresponding to the size and phase angle of the note data as the note symbol position.