This teenage Aussie is one of R&B’s most strikingly authentic new voices. Tre Samuels has emerged from Melbourne’s music scene at the perfect time, just as the music world is thirsting for the woozy but ever earthy tones of “Flying Without You.” An insistent hip-hop beat pushes “Killer” into your pores, but it’s Samuels’s pliant falsetto that connects “Come Down” to D’Angelo’s naked vulnerability. With its staggered beat and free-floating vocals, the album’s lynchpin is “100,” a song that simultaneously massages and mystifies.