Jazz vocalist Penni Layne warms up Christmas with the upbeat, hopeful, and romantic “Warm in December”. The straight-ahead jazz album of seasonal standards dropping November 29 will be celebrated at a December 13 concert at Boston’s Regattabar. For many, Christmastime is a feeling more than a religious occasion and jazz singer Penni Layne ventured to capture the enchanting feelings of the holiday season and set them to music via a ten-song setlist comprised of classics and an original song that she wrote with her coproducer Larry Jackson. Backed by a jazz quartet, Layne’s “Warm in December” arrives on November 29 from Upside.