Janis Mann’s last album, A Perfect Time (Pancake 2008), was a galvanizing tour de force that revealed her as a singer who loves to swing and has an affinity for rhythmic variation. 　　With this offering, Mann shows us another side of her tonal personality. Her past efforts have utilized written arrangements and pre-set formats, but here Janis and her band trusted their musical instincts. This album is not a construct of multiple takes and canny edits, laboriously winnowed into a pasted-up final edition. It’s an audio snapshot of four musicians who met in the studio and courted serendipity. The heads were worked out on the spot and they relied on mutual chemistry as a guide.