I have been playing the diatonic for some time now to blues music, and have found it relatively easy to play and improvise to blues recordings: just figure out the key of the song, pick up a harp in the corresponding cross harp key, and there you go. However, when I try to play to modern rock (dare we say, alternative) styles of music, I found a lot of the notes horns and guitairs are playing are not available to me on my harp, even when I am sure I am playing in the right key (cross harped). Although I know very little about the chromatic, I have become interested in it becuase I think it might solve this problem. Is it true that you can get all notes on the chromatic without bending? How often does the slide come into play and just what does the slide do? Do you need formal instruction to learn how to play the chromatic effectively? What is a good chromatic model to start with, and could you also recommend a book or tape, etc? Thank you for helping me out!!