Julia Holter at Webster Hall

Julia Holter at Webster Hall
May 17. 7:30PM. $34.60

Julia Holter’s songs have long occupied a gray area between pop and art music. One of her early albums, called Tragedy, was actually based on an old Greek tragedy by Euripides. As likely to work with adventurous rockers as with contemporary classical musicians, Holter has an unusually keen ear for unexpected sounds. Take her song, “Evening Mood,” where hazy layers of vocals swirl over a rhythm section that seems more about the feeling of movement than the actual sound of it – and it turns out the basis of the song is a heavily processed heartbeat. Her latest record, built around the waterlike flow of the body's internal sound world, is called Something in the Room She Moves. Julia Holter plays on May 17 at Webster Hall.