A bit more middle-afternoonish

I was reading an article about Syd Barrett, and claims that he had synthaesthesia. The author gives this quote from Syd from a recording session as proof of his synthaesthesia.

"Perhaps we could make the middle darker and maybe the end a bit more middle-afternoonish [because] at the moment, it's too windy and icy"

Is it just me, or is that just a perfectly normal way to describe how some music sounds?