Construction Example for Algebra System Using Harmony Search Algorithm

Algorithm 4

The pseudocode of the proposed algorithm INGHS.

   %%% worst is the index of the worst harmony in HM

For to D

  If rand(0, 1)  <  

    % Random playing: randomly select any pitch within bounds

  Else

    If rand(0, 1)  <  HMCR

      % Memory considering: randomly select a note stored in HM

      If rand(0, 1)  <  PAR

       % Pitch adjusting: randomly adjust the pitch slightly

      EndIf

    ElseIf rand(0, 1)  <  NGP %

    EndIf

  EndIf

EndFor % Finished improvising a new harmony