The word “tasteful” sometimes acts as code for tame forms of jazz. The characterization is unmodified by aspersion in the case of the music of guitarist John Stein. The recently released Lifeline, a 145-minute compilation of “26 tracks spanning 23 years and 15 albums,” showcases Stein’s consummate tastefulness. A member of the faculty of the Berklee College of Music in Boston for years, Stein was raised in Kansas City. Much like the Kansas City guitarists Danny Embrey and Rod Fleeman, Stein emphasizes insightful swing rather than hollow flash. David “Fathead” Newman is the most prominent of Stein’s collaborators, but Stein’s career isn’t driven by cosigns from all-stars. Lifeline is a master class in egoless excellence.