One additional comment re dragging into Sonar.

The example shows a direct drop but it appears that the start of the audio does not quite line up with bar 3 the way it probably should. This means that probably the tempo in BIAB does not match the tempo set in Sonar in the example shown. It is best to always set the tempo in Sonar before drag-drop from BIAB so that the tempos match and therefore bar lines also match up.

The reason for this is that if you now start to put in a melody or any other instrument using a sample library in a new midi track, without matching tempos, then the notes will not match up with the timing of the imported tracks from BIAB. This is a problem if it occurs since then its very difficult to sync up the notes with BIAB tracks.

Cheers.