+ int64_t zoom_track = file->tag.get_property("ZOOM_TRACK", 0);
+ if( zoom_track > 0 ) zoom_atrack = zoom_vtrack = zoom_track;
+ zoom_atrack = file->tag.get_property("ZOOM_ATRACK", zoom_atrack);
+ zoom_vtrack = file->tag.get_property("ZOOM_VTRACK", zoom_vtrack);