Luther Masanto fashions himself a tastemaker. Masanto, who goes by DJ Shy Guy, is one of a group of DJs trying to spread the art in Syracuse’s nightlife. This Friday Masanto and two other local DJs, DJ 40 and DJ Bianca, are collaborating for the Lovers and Friends: R&B Night at The Song and Dance at 115 East Jefferson St. The ticketed event is expected to play hits from the late 1990s through the mid-2000s.