class Interpretation_context_handle
{
public:
~Interpretation_context_handle ();
Interpretation_context_handle ();
class Interpretation_context_handle
{
public:
~Interpretation_context_handle ();
Interpretation_context_handle ();
bool try_music (Music *);
void operator = (Interpretation_context_handle const&);
Interpretation_context_handle (Interpretation_context_handle const&);
bool try_music (Music *);
void operator = (Interpretation_context_handle const&);
Interpretation_context_handle (Interpretation_context_handle const&);