What I have read by all sounds interesting, but I stand by a fact that if you LEARN how to lay down a bass track in COMPOSER, you will never again be pleased with 99 percent of bass responses in pre-set rhythms. They sound fine when you play a "C" chord and listen to the complete rhythm - using it in a song in a PROFESSIONAL sounding way, is another matter. Sorry folks, in uneducated English, "It don't work!" Once you fully understand the limitations BUT proper placement of composing a bass line, you will understand that you won't have a problem with inversions. For a bass to work well in a song, these limitations become the old adage, "less, is more." What I have said in NO WAY is taking away from some very interesting ideas set forth in some of the pre-set rhythms, it is more the VARIATIONS that suffer badly. I have heard some very impressive INTROS and ENDINGS and on occasion, FILL-INS on pre-sets and then everything else falls flat. In reality, how could anyone think these pre-sets, based on 4 measures, could ever sound professional? They are purely done for the novice musician to "have fun" with. "Fun" is fine, but wouldn't you rather be a better musician? The KN6000/KN6500 has the ability to create music that is totally professional. LISTEN! And above all, listen to yourself and learn - you will be surprised what you will be able to come forth with, if you will just start using COMPOSER and create your own styles. One of the first things to learn laying down a track is to BE that musician - whether it be a bass player - understand, the way a bassist plays. He or she doesn't just "play" a note, they more often than not, "reach" for a note. You do this by "bending" the note with your PITCH BEND wheel. Keep in mind, when a bass player plays, he is more often than not, fingering up to a note. The same thing applies to a sax or guitar player - They just don't "play" notes, they bend (guitar) or cup (sax) a note. This is done, of course, in the RIGHT places. This gives you realism - life, to a performance. LOSE THE MECHANICAL SOUND. This applies especially to DRUM tracks. If a drum track doesn't sound well, the other tracks more than likely won't either. Again, listen and ask yourself, "Is this the way a drummer would play?" If it isn't, then experiment further with new ideas. Try different drum sounds and syncopated rhythms. YOU CAN DO IT!!!