The inventive soprano saxophonist Jane Ira Bloom performs a set of duets with the adaptable and complementary pianist Fred Hersch. They play two originals apiece (including Hersch's "Janeology"), collaborate on "Inside," and perform a song apiece by Wayne Shorter ("Miyako") and Alec Wilder. The improvisations are generally melodic but unpredictable, coherent but fairly free. Worth several listens.