It can be speculated that JJ currently only has the idea in mind but doesn't fully believe that Jiang Siming can truly write him a suitable song.
Jiang Siming, being a savvy social veteran, could immediately see that the other party wasn’t confident in him yet.
So, while the other party hadn't shown enough sincerity, Jiang Siming had no intention of trying to ingratiate himself.
These things are about mutual consent and respect, right?
It's not that JJ disrespects him, but JJ is a senior figure in the music industry with a legendary reputation. Jiang Siming, a nobody who just happened to write two or three good songs, couldn’t expect JJ to suddenly view him as a genius.
There are plenty of people who can write a couple of good songs. If Jiang Siming were in JJ's position, he wouldn’t easily believe in a young person with such limited achievements either.
This matter would have to wait for another time.