spacealf
If you have audio tracks only and Sonar keeps going, then there is something there. Get to the end point you want, highlight all the tracks and to the end of wherever it is by the From Now Thru End - and Delete everything using Edit and hole left by whatever it is.
I bet the cursor will not keep going after that when saving and playing the song again.
I bet it even works for Midi tracks also.
No, there is something there, something did not get deleted.
 

 
Of course, the first thing I checked was for something there.  
 
These are tracks that were recorded live, and when they end there is nothing there, nothing that was recorded past the track endings. Yet Sonar just keeps going until I stop it.

>In X series go to Track View - Options - Stop at Project End. There must be a similar setting in previous versions.
There is. Options > Global > General > Stop at Project End.
 
I think we're discussing why that instruction doesn't always work.
 
I don't agree with Space (above) that there's something there, even though that sounds like an obvious one. If I leave the song running, the cursor would travel thousands of measures!

Sorry, missed the part about "one song only".
 
To answer the original question, the last bit of data in a project (audio, midi note, controller, automation, loop points, etc.) defines the end. If Options > Global > General > Stop at Project End is checked then Sonar should stop at the last one of these. If it is NOT checked then Sonar will ignore these and keep going.
 
If the setting IS checked and the Now Time Line keeps moving then the Project in question could be corrupt. I am always ending up with corrupt projects that behave oddly.
 
Try dragging the audio to your desktop, then create a new project and drag them into it. Check that Options > Global > General > Stop at Project End is checked and see what happens.
 
 

Put a midi event such as a note somewhere just past the end of the audio and see.if that works to stop Sonar.

I have this same problem. I always thought it was just me forgetting something at the end.

But even if I do a select/delete ay the very end it still just keeps.going.

I have walked away thinking it would stop when it came the the end, but like op, thousands of measures later it's still going.

soens
Sorry, missed the part about "one song only".
 
To answer the original question, the last bit of data in a project (audio, midi note, controller, automation, loop points, etc.) defines the end. If Options > Global > General > Stop at Project End is checked then Sonar should stop at the last one of these. 

 
What version of Sonar are you referring to? X2 does not have a Global selection under Options.
 

Press "P" for preferences and look there.

Grem
Press "P" for preferences and look there.

Did that before I posted. Not seeing a General or Global section and can't find an option to set Project End. 

There will always be SOMEthing on the timeline which Sonar interprets as the "end" of the song (the muted Midi clips problem aside)
 
Look for:
Tempo changes
Meter/Key changes
Envelope nodes
Hidden tracks/busses
Markers

Ruben:
 
We're talking about Sonar 8.5.3, soens just happened to mention where cursor behavior options are found in X2.
 
There is no 'Set Project End' in either version but there is an option for the cursor to Stop at Project End. That's found under Options > Global > General Tab. That doesn't fix my one rebellious song but it might be the answer for others.

Thanks for the clarification.