Ym2413+instrumentsbin [work] Direct

18;write_to_target_document7;default0;3a00;0;b46;0;13d0;18;write_to_target_document1b;_xGXuaaOtCcegnesPkNGBqAY_100;57; 0;f5;0;195;

You need a file named ym2413.zip . This is considered a "device" or "BIOS" file in MAME terminology, separate from individual game ROMs.