You know a producer has got something when the first note of the first track you hear makes you sit up and take notice. So it is with 19-year-old East Londoner Joss Ryan: the instant the jabbing orchestral motif at the beginning of >Melancholy Dreams< – the title track of his debut EP – kicks in, it hits your emotional centres hard and lodges in your memory. As statements of intent go, its a pretty tasty one, and tells you that this is a talent who can stand out and make an impact way beyond the ins and outs of the micro-genres and endlessly reconfiguring trends of underground music.To put it simply: Joss is a grime kid who expanded his horizons. His popular mix of his own material for Mary Anne Hobbss radio show last December already shows that the three tracks on this EP are by no means a fluke, and there is a whole lot more to come besides…