@item
`type' or interface: Each music name has several `types' or interface,
- for example, a note is an @code{event}, but it is also a @code{note-event},
- a @code{rhythmic-event} and a @code{melodic-event}.
+ for example, a note is an @code{event},
+ but it is also a @code{note-event},
+ a @code{rhythmic-event} and
+ a @code{melodic-event}.
All classes of music are listed in the internals manual, under
@internalsref{Music classes}.