Jazz is the only language becoming universal by virtue of his improvising syntax set of rules integrating all instruments and music styles slowly but surely ...
I’m confused. There are plenty of other genres that incorporate improvisation. I don’t know what you mean by "improvising syntax set of rules integrating all instruments". Are you referring to simultaneous improvisation and drawing a line between it and the more common approach wherein individual players play solos in turn?
For sure all music styles all over the world wrote their own syntax rules integrating if not potentially all instruments as for jazz a few even many (India-Persia). It is well known to anybody who like world music as i am ...
But there is only one style which goes all around earth as an influences doing it at this scale and for such different cultures...
No other genres did it as jazz did...I like Fado for example but it stayed in Portuguese world mainly and his syntax let no trace in Japan as Jazz did..
“just because there is improvisation doesn’t mean it is Jazz”.
For sure all world music is based on improvisation...
I like chinese music and japan traditional music, none of it let his syntax rules and chord scales imprint all around the world...
Black traditional jazz begun to do it, it extended to all America, it reach Europe then it encompassed the world..
Is it pure jazz as in the golden age of jazz ? No..
Is it jazz at 100% like in the golden age now in all countries by those musicians calling themselves jazzmen?
No..
But it does not invalidate my point that jazz became if not the only at least the main universal matrix of influence for all improvised music around the world so much that the classical folk music of many countries begun to kept jazz as an inspiration for his own growing transforming essence ... As Hollywood film making influenced all the world cinema...
Is it a good thing ?
For the Hollywood influence on other countries cinema i dont think it was only a good influence, it is a mix...
For jazz it is almost all good influence...
There is something new and universal in improvised jazz language at his core...
As there is something universal exportable from this WRITTEN classical syntax european music ...So deep and original sophisticated are Indian and Persian music they were not exportable as Jazz or classical were...
Yoruba talking drums language inspired the greatest acoustician i read but it is not universally exportable as a useful integrating syntax even if music is a universal understood language, not as exportable and integrating form as jazz improvisation rules and classical written language were...Because in all cultures the perceived meanings depend more of a specific instrument depth core timbre/tone meanings as physical instrument . Being Yoruba drums or tabla or all Veena variations or all various lutes family or flutes variation in Turkisch sufi music etc..
Frogman here being a musician can certainly better than me speak about it...