Fomus

these are notation symbols that affect duration. three different types of fermatas may be specified (the default is :short if none is specified). breath marks may be set to occur before or after the note it's attached to (the default is :after). the :autodur mark indicates that fomus should determine the duration of the note, appropriate for events such as pizzicatos or other percussive-type attacks that don't require a specific duration but only a simply notated one. this has an effect only if the auto-percussion-durs setting is set to t.

(:fermata &optional :short || :long || :verylong)
(:breath &optional :before || :after)
(:autodur)