if (staffInPart) { sb.append(" firstStaffInPart"); }
        public String toString ()        {            StringBuilder sb = new StringBuilder();            if (part) {                sb.append(" firstPart");            }            if (system) {                sb.append(" firstSystem");            }            if (measure) {                sb.append(" firstMeasure");            }            if (staffInPart) {                sb.append(" firstStaffInPart");            }            return sb.toString();        }