<course>Describes the tuning of a course on a stringed instrument (e.g., guitar, lute).
<string>Used to modify tuning information given by the course element. Describes the tuning
of an individual string within a course on a stringed instrument (e.g., guitar, lute).
<course>Describes the tuning of a course on a stringed instrument (e.g., guitar, lute).
<string>Used to modify tuning information given by the course element. Describes the tuning
of an individual string within a course on a stringed instrument (e.g., guitar, lute).