let maj7_filter = [4,3,4];

let m7_filter = [3,4,3];

let _7_filter = [3,3,4];

let dim7_filter = [3,3,3];

let major_filter = [4,3];

let lydian_filter = [2,2,2,1,2,1];

​

let chord_filters = [maj7_filter,m7_filter,_7_filter,dim7_filter,major_filter,lydian_filter];

​

let bnchrs = ["C","C#","D","D#","E","F","F#","G","G#","A","A#","B"];

​

let basenote = 0;

​

let current_filter = dim7_filter;

​

function extractNotes( _cfilter, _basenote ){

​

  let _arr = [];

  let stepi = float(basenote);

  _arr.push(bnchrs[stepi]); // add basic note

  //console.log("steppi_one:" + stepi);

  for(let i=0;i<_cfilter.length;i++){

      stepi += float(_cfilter[i]);

    if(stepi > 11){  _arr.push(bnchrs[stepi-12]); }else{

      _arr.push(bnchrs[stepi]);      

    }

    }

  // clear note array -----------

  notes = [];

  // fill octaves

  for(let j=0;j<3;j++){

      for(let k=0;k<_arr.length;k++){

        notes.push(_arr[k]+(j+3));

      }

  }

  drawStageBasics();

}

​