Instruments.java

public enum Instrument {

    BASS_DRUM("Bass Drum", 35),
    SIDE_STICK("Side Stick", 37),
    CLOSED_HIGH_HAT("Closed High Hat", 42),
    OPEN_HIGH_HAT("Open High Hat", 46);

    private String label;
    private int drumKey;

    Instrument(String label, int drumKey){
        this.label = label;
        this.drumKey = drumKey;
    }

    public String getLabel(){
        return this.label;
    }

    public int getDrumKey(){
        return this.drumKey;
    }
}