Molly Tuttle and Golden Highway Crooked Tree Nonesuch   Songwriter, vocalist, and guitarist Molly Tuttle makes her Nonesuch debut with Crooked Tree. Co-produced with dobro virtuoso Jerry Douglas, the release includes a number of prominent traditional musicians as collaborators and focuses on Tuttle’s connections to bluegrass and roots music. Previous releases have seen Tuttle sit astride pop and bluegrass, and while Crooked Tree emphasizes the latter, the memorability and single-worthy character of many of its songs reminds us that she is a versatile and formidable talent.    Tuttle plays guitar in a flat-picking style and at turns plays nimble lead