Cramming extracts of the musical measure and part models into a single gist for the sake of a blog post

MeasurePartsModels.java

public class MeasureModel extends ScoreContainerModel {
	
	// snip ...
	
	private List<PartModel> parts = new ArrayList<PartModel>();
	
	// snip ...
	
	public List<PartModel> getParts() {
		return parts;
	}
	
	public PartModel getPartByIndex(int index) {
		return parts.get(index);
	}

	public void setParts(List<PartModel> parts) {
		this.parts = parts;
	}
	
}

public class PartModel extends ScoreContainerModel {
	
	// snip ...
	
	/*
	 * What's on the lines ...
	 */
	private List<StaffElementModel> staffElements = new ArrayList<StaffElementModel>();

	// snip ...
	
	public List<StaffElementModel> getStaffElements() {
		return staffElements;
	}

	public void setStaffElements(List<StaffElementModel> staffElements) {
		this.staffElements = staffElements;
	}
}