Hi Bez, how are u? So i've composed something I call 8-bit jazzy u can listen here:
I have never composed a smooth jazz 'cause it's not my research but I assume i know how to.
And about mathcore same thing.. I know the technics, the instrumentation and have listened a lot in this style but I have made some black metal( It's an antifascist black metal!) and experimental rock u can listen here(both I composed, Produced, played, etc by myself) :
and here:
And I have a band that we play some progressive weird stuff as well, that I've composed the song, sing and play guitar u can listen here:
Hope u like my work! I would love to work with you in a future! ;D