.keyWhite           { stroke: gray; fill: white; }
.keyBlack           { stroke: gray; fill: black; }
.keySelected        { stroke: gray; fill: brown; }
.keyFourth          { stroke: gray; fill: orange;}
.keyFifth           { stroke: gray; fill: green;}
.keySensible        { stroke: gray; fill: red;   }
.keyNotDiatonic     { stroke: gray; fill: blue; }

span.keyTonic       { color: black;  }
span.keyFourth      { color: orange; }
span.keyFifth       { color: green;  }
span.keySensible    { color: red;    }