Ferde Grofe's "On the Trail," from his celebrated Grand Canyon Suite, is reimagined as a jazz vehicle on Walter Smith III's 2018 album Twio. This track features an extraordinary pairing of two of the finest tenor saxophonists of their generation: Smith and Joshua Redman. The tune's 16-bar form in the key of F is performed at approximately 135 beats per minute, a comfortable medium tempo that allows both saxophonists room for melodic development. Redman opens with three choruses of characteristically inventive improvisation, his playing marked by rhythmic wit, harmonic sophistication, and a warm, singing tone. Smith follows with three equally compelling choruses, bringing his own distinctive voice to the same harmonic territory. The two-tenor format has a rich history in jazz, from the battles of Dexter Gordon and Wardell Gray to the collaborations of Johnny Griffin and Eddie "Lockjaw" Davis, and Smith and Redman honor that tradition while bringing thoroughly contemporary sensibilities to the exchange. Hearing these two voices on the same instrument in direct succession invites productive comparison while highlighting the unique qualities each musician brings to the saxophone. This performance is a testament to the enduring vitality of the jazz tradition of musical dialogue and friendly competition.