Hello Again,
T-Bal, I'd like to reply to each of your points one at a time, as I would like to elaborate a little on my points from before.
1. In the case of tin pan alley/show tunes, I agree that there are no single correct set of chord changes for any given song, but that there can be many different ways to accompany the same tune - I often perform with a vocalist who loves to make such changes on tunes that I have played hundreds of time one way, only to be thrown a curve come performance time - Definately keeps me on my toes and keeps things interesting!
2. In regard to jazz standards, I agree with you when you say that the Original Real Book notates these tunes incorrectly in relation to the work of the original author of these tunes. However, I feel that our definition of "evolve" or evolution is somewhat different and therefore, I would like to expand upon my point. Within a musical context, I think it would be fair to say that a tune is evolving as more and more individuals play it one way versus another, with fewer and fewer people playing the tune the original way. So in this case, our frame of reference is the tune itself: chords, melody, key, etc. With each passing year, more and more individuals decide they would like to explore the realm of jazz for themselves - And what is the easiest way to get an introduction to the jazz language? Go pick yourself up a Real Book! (I'm not suggesting that their are not other ways to enter jazz from the ground floor - listening, exploring one's intrument, learing from other experienced players, etc. are all optimum options. However, purchasing a Real Book is likely the easiest of the options, and therefore, will likely be used by the largest number of individuals). So up until the arrival of the new legal Leonard Book, each person who went out and purchased the Real Book and treated it like the Bible of Jazz would be learning said tunes incorrectly. So, therefore, each year the number of people playing the incorrect melodies, changes, etc. to these tunes would be increasing. In addition, as time passes the number of people who have been "on the scene" for awhile will be decreasing for various reasons - Age, physical ability, loss of ambition to name a few. It is my thought that the individuals playing said tunes correctly (ie. in the original way) would likely be members of this group. So, each year the number of people playing the tunes the new way (incorrectly) increases, while the number of people playing the original way (correctly) decreases. Therefore, it seems a strong movement towards playing said tunes incorrectly (new way) versus playing tunes correctly (old way) - This sounds to me like evolution! I will state, however, that I don't feel that this is good - it is however an indication of the state of learning in jazz - take the easy way out, buy the book - listen later when you have a chance! Not all evolution is good, but it can still be evolution.
3. In regard to lead sheets, I think my points in 2. above are quite valid. I am aware that things are open to change during the performance of any given tune - This is one of the greatest aspects of jazz music! However, if said lead sheet, the point of performing reference, is from the original Real book (with the incorrect changes), then my point is still valid.
4. I can agree that my use of the word "dicate" is perhaps a little strong - However, I think that for the new generation of jazz musicians, the use of the Real Book is quite apparent and therefore is a valid point of discussion. If all people new to jazz in the future are to use a Real book, the question of old Real Book versus New Real Book will give some insight into how tunes will be performed in the future. As the number of people who began playing before the arrival of the fake book decreases, the significance of the fake book increases. Therefore, the sales of these new legal Real books versus the continued passage and copying of old, out-dated and incorrect copies of the original Real Book is definately a point to ponder...
Looking forward to your reply
fm