The program can also be run in the full screen mode in order to work efficiently and yes you can also lock your keyboard in order to prevent the program from accidental closing. There are lots of audio effects included in this software that can be mixed into the final product like bomb explosion, chirping and screaming etc. You can also download Traktor pro which is awesome audio mixing and music software.
With Karma you can play with your existing audio files. You can increase/ decrease the volume of the audio file plus you can also alter the pitch of the sound according to your liking. The time interval of the lyrics can also be increased or decreased.
There are various themes included in the package with which you can change the overall look of the application according to your mood. The background of the karaoke pane can also be changed.
On a conclusive note we can say that Karaosoft Karma is one heck of a tool that allows the users to create playlists and let them do some other modifications. The interface though is a bit overloaded so may be the novices take some time to adjust. All in all a great application and a must have.