AudioSource (const XMLNode&);
virtual ~AudioSource ();
+ /* one could argue that this should belong to Source, but other data types
+ generally do not come with a model of "offset along an audio timeline"
+ so its here in AudioSource for now.
+ */
+
+ virtual jack_nframes_t natural_position() const { return 0; }
+
/* returns the number of items in this `audio_source' */
virtual jack_nframes_t length() const {