.icono-piano{
    width: $28;
    height: $22;
    @extend .icono-stroke
    margin: $6 $3;
    &:before{
        position: absolute;
        left: $4;
        top: 0;
        width: $1;
        height: 100%;
        box-shadow: inset 0 0 0 $32, $5 0, $10 0, $15 0;

}
    &:after{
        position: absolute;
        width: $3;
        height: $12;
        left: $3;
        top: 0;
        box-shadow: inset 0 0 0 $32, $5 0, $10 0, $15 0;

}

}