Infinite Trajectories: Concert Band Conductor Score & Parts
By Mark Lortz
Grade: 4
Item: 00-PK-0009508
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About the Composer: Mark Lortz

Mark Lortz directs the music program at Stevenson University and brings decades of experience as both a composer and arranger working at the highest levels of the activity. His music has premiered internationally and earned recognition at major conferences including The Midwest Clinic and the College Band Directors National Association; he also serves as music editor for RWS Music Company and brass arranger for the Reading Buccaneers, a multi-world champion drum and bugle corps. ASCAP has honored his compositions annually, and his works appear on Bandworld's Top 100 and J.W. Pepper's Editor's Choice lists.
Beyond the page, Lortz adjudicates competitions nationwide and conducts honor bands, community ensembles, and orchestras throughout North America and Europe. He has worked with the U.S. Army Field Band, the Naval Academy Drum and Bugle Corps, and the Jazz Ambassadors, and served as Associate Music Director and Percussionist for Phantom of the Opera. The Maryland Music Educators' Association recognized his impact on music education with an Outstanding Educator award in 2024. He holds a Ph.D. in Music Education from Temple University and studied percussion performance, composition, and education at the Peabody Institute of Johns Hopkins University.
Why we love this
Lortz crafts music that does real work in a concert program. Rather than settling for generic inspirational messaging, Infinite Trajectories uses warm harmonic color and deliberate textural growth to embody the emotional arc of personal development, making the emotional content tangible for both performers and audience. The Grade 4 difficulty level delivers sophisticated writing without sacrificing accessibility, so your ensemble can sound genuinely accomplished while building musicianship on meaningful repertoire.
What to expect
Infinite Trajectories opens with warm, welcoming harmonies that establish a sense of belonging, then gradually introduces new colors and textures as the ensemble discovers its voice. The final section accelerates into a confident, driving conclusion that feels earned rather than imposed, leaving performers and listeners with the unmistakable sense of having traveled somewhere meaningful together.
Who it's for
Directors programming concert band festivals, honor bands, or year-end concerts who want repertoire that celebrates ensemble accomplishment and student growth. This work reaches Grade 4 ensembles that have developed solid fundamentals and are ready for music with genuine musical substance and thematic purpose.
How to get the most out of it
- Shape the evolving textures by bringing attention to how the harmonic palette shifts; use dynamics and section balance to highlight the journey from warm foundation to energetic finale rather than treating texture changes as technical challenges.
- Lock the ensemble on the driving rhythmic figures that propel the finale; a tight, committed ensemble in these passages will capture the piece's momentum and give students the satisfying sense of building toward something important.
- Conduct with intention through the warm harmonic sections; allow your gestures to reflect the sense of discovery and growth, which will help students invest in phrasing and musical storytelling rather than simply playing the notes.
How to use it
Program this as a showcase piece on a festival or concert program where it can anchor the second half, following lighter openers and giving your ensemble a chance to demonstrate growth. It works especially well on honor band concerts, awards programs, or closing concerts where celebrating student achievement is central to the event's purpose.
Skills your students will build
- Balancing harmonic color and blend across a changing textural landscape
- Sustaining musical shape through extended warm passages before shifting to driving rhythmic material
- Coordinating section entries and transitions that require precise listening across the ensemble
- Executing rhythmic precision in the finale while maintaining musical expression