Kind indicates the type of chord. Degree elements can then add, subtract, or alter from these starting points
The attributes are used to indicate the formatting of the symbol. Since the kind element is the constant in all the harmony-chord entities that can make up a polychord, many formatting attributes are here.
The use-symbols attribute is yes if the kind should be represented when possible with harmony symbols rather than letters and numbers. These symbols include:
major: a triangle, like Unicode 25B3
minor: -, like Unicode 002D
augmented: +, like Unicode 002B
diminished: °, like Unicode 00B0
half-diminished: ø, like Unicode 00F8
The text attribute describes how the kind should be spelled if not using symbols; it is ignored if use-symbols is yes. The stack-degrees attribute is yes if the degree elements should be stacked above each other. The parentheses-degrees attribute is yes if all the degrees should be in parentheses. The bracket-degrees attribute is yes if all the degrees should be in a bracket. If not specified, these values are implementation-specific. The alignment attributes are for the entire harmony-chord entity of which this kind element is a part.