{
public:
MidiPlaylist (Session&, const XMLNode&, bool hidden = false);
MidiPlaylist (Session&, std::string name, bool hidden = false);
MidiPlaylist (boost::shared_ptr<const MidiPlaylist> other, std::string name, bool hidden = false);
{
public:
MidiPlaylist (Session&, const XMLNode&, bool hidden = false);
MidiPlaylist (Session&, std::string name, bool hidden = false);
MidiPlaylist (boost::shared_ptr<const MidiPlaylist> other, std::string name, bool hidden = false);