I think that perhaps Thierry can shed a little light on this subject.
I would tend to say it is grossly underrated. I had not noticed that it is commonly regarded as having any value at all, never mind being overrated. Very few pianists outside the confines of jazz seem to do it. The small minority who habitually improvise no doubt do so because of the heightened mental states engendered in the player by the best of it. These states, from what I have seen, are hardly ever obtained through performance of pieces and seldom encountered during slow composition. Improvisation for the player is not quite like any other musical experience because it combines composition, performance and listening in the one mind at the one time. However, I can understand how the point of it completely escapes those who have never tried it to any extent, or perhaps tried it solely with the object of imitating structured forms of the past. Of course there is no reason somebody cannot enjoy everything - interpretation, composition and improvisation - no law against doing it all.
Ted:i understand your argument, but you are basically pointing out how useful and interesting is improvising for the PLAYER. However, my question was made from the LISTNENER side. I still dont see how listening to improvised music can be a richer or more enjoyable experience than listening to well crafted compositions corrected and polished over some time.Let us make a parallelism with other arts:Can a painting made in 5 minutes be better than one painted in 2 months, carefully analysing every detail? Can a a book written in 2 days be richer or deeper than a novel elaborated over 2 years?
Can a a book written in 2 days be richer or deeper than a novel elaborated over 2 years?
I'm wondering how much of this apparently greater enjoyment of pre composed music stems from the musicologist perspective of needing to dissect a composition and know what makes it tick in order to appreciate it more. Do we need to know how a piece works before we can appreciate it? Do we need to know how an automobile works in order to enjoy the ride?Just because one is improvising does not mean one is not analyzing and refining. A skilled improviser can continually take what he has just played and further refine and shape it. I wonder what would result if we collected several unlabelled recordings - some improvised some composed - then presented them to listeners so that they may rate their enjoyment of each piece without any bias toward the creative process.
Music is always improvisation. I met an improviser who said: "I prepare for my improv concerts exactly as much as for a concert with repertoire". Interpretation without "improvisation" is often boring. Practice the rep as exactly and as carefully as possible and then let it flow. Improvise as if you are playing a sonata or whatever form from the spot. Bach was able to improvise complex Fugues. Beethoven's improvisation skills are legendary.
Heh, too bad Bach and Beethoven are dead! We'll never know how their improvisation sounded---. It's our turn!
Future text book will list:Mozart, Beethoven, Wolfi......
The small minority who habitually improvise no doubt do so because of the heightened mental states engendered in the player by the best of it. These states, from what I have seen, are hardly ever obtained through performance of pieces and seldom encountered during slow composition.
Let's face it, some of this disdain for improvisation is the snobbery of the classically trained pianist. The jazz pianist works just as hard at his craft, only in a different direction.
On a pure analysis basis, carefully composed music is more correct than improvised.
In recent decades, more and more jazz/imporv artists have been throwing around the seemingly paradoxical terminology of 'instantaneous composition', a term I initially doubted but that I've come to understand more and more as I've listened to more improvised music.
"Instantaneous composition" is a good term... more people should use it. The word "Improvisation" makes people think of elevator jazz music and "noodling." But many fluent improvisers know you can actually generate melodies, progressions, entire form all at the same time and all spontaneously. You don't need any guides...no charts, no preconceived melodies, no preconceived progressions, no nothing. You can literally compose on the fly. It is challenging but very rewarding especially when it "takes off" as it were.
A good literary parallel to inprovisation would be Jack Kerouac's 'On The Road'. If I remember right, he wrote it in a stream of thought over something like 2 weeks. Putting sheets of paper together so he wouldn't even have to break to put a new sheet in his typewriter.