"Serenity" is a performance of Joe Henderson's composition from the 2017 album Sweet Stuff by the Daniel Rotem and Josh Johnson Quartet, featuring extended solo statements from both saxophonists. Josh Johnson opens with four choruses of alto saxophone at 174 BPM over Henderson's 14-bar form in E-flat, the unusual form length creating a rhythmic asymmetry that keeps the improvisation feeling fresh and unpredictable. Rotem follows with five choruses of tenor saxophone at 177 BPM, his longer solo demonstrating the stamina and inventiveness required to sustain interest over an extended improvisation. Drummer Christian Euman closes with one chorus, adding rhythmic commentary to the performance. Henderson's 14-bar form is a composer's masterstroke, its odd length preventing the kind of predictable phrasing that can develop over standard 32-bar forms. Both saxophonists embrace this challenge enthusiastically, their solos revealing the liberating effect of working within unconventional structures. The track pays tribute to Henderson, one of the most important tenor saxophonists and composers of the post-Coltrane era, while establishing Rotem and Johnson as inheritors of that tradition.