<classSpec ident="att.guitarGrid.vis" module="MEI.visual" type="atts">
                                    
                                    <desc xml:lang="en">Visual domain attributes</desc>
                                    
                                    <attList>
                                       
                                       <attDef ident="grid.show" usage="opt">
                                          
                                          <desc xml:lang="en">Determines whether to display guitar chord grids.</desc>
                                          
                                          
                                          </attDef>
                                       </attList>
                                    </classSpec>