Troye Sivan, “In a Dream” (Capitol) Somewhere between a single and an album sits the EP and that's how we get our latest dose of Troye Sivan — his six-track “In a Dream.” It's a perfectly-timed appetizer for an evolving artist — a wistful and experimental musical postcard for an uneasy era. Many songs have an extended house break, as if Sivan was stepping away to dance furiously on his own.