Ardour is a great product and what makes it better is the frequent releases. These fixes sorts out all those irritating and not so nice issues, as well as some nasty ones… But since they come out fearly often, it is great to download the newest version on the Mac and keep having fun. Thanks for all the effort at keeping Ardour my favourite.
The Ardour Digital Audio Workstation is an Open Source Mac OS X (and Linux) application that is a multichannel audio editor. Its web site says it has unlimited undo and redo, unlimited tracks, timecode synchronization, and bunch of other high-end (IMHO) audio editing features.