Teachers and Staff

Cross of Christ Music Academy


Halladay HeadshotAndrew Halladay

Executive Director
Piano, Voice, Guitar

Andrew Halladay is the Minister of Music at Cross of Christ Lutheran Church in Broomfield, Colorado, and is also the Executive Director of the Cross of Christ Music Academy. Andrew received his Bachelors and Masters in Music Composition from the University of Colorado at Boulder, and he has since been working with churches and other artists around the country as a composer and arranger. Andrew also has enjoyed singing in several of the Front Range areas premier choirs including Kantorei, Colorado Conductors Chorus, Colorado Bach Ensemble, and Dr. Howard Skinners annual ChoralFest choir and orchestra. Andrew lives in Broomfield, Colorado with his wife, Rachel, and two sons, Jacob and Charlie.



Web-1Adam Buer


Adam Buer received a Bachelor of Music Degree in Instrumental Music Education and a Master of Music Degree in Guitar Performance from the University of Idaho. As a music instructor he has worked for CU-Boulder, Front Range Community College, Jarrow Montessori, and the Parlando School for the Arts. As a solo guitarist, Adam has won prizes in a number of competitions including those at the 2005 Northwest Guitar Festival, the 2005 Music Fest Northwest, and the 2004 Idaho Federation of Music Clubs. He has performed with the Symphony Orchestras of Spokane and Walla Walla as well as the Boulder Guitar Orchestra, Central City Opera, and Longmont Theater Company. Adam’s teachers have included James Reid, Nicolo Spera, and Dale Bruning. He has also studied in master classes with such notable guitarists as Christopher Parkening, Bryan Johanson, and Alieksy Vianna.


Jamie's Headshot

Jamie Halladay

Piano, Voice, Saxophone

Jamie is a professional singer with many organizations in the Denver area including Opera Colorado, Boulder Opera Company, Cabaret Otaku, Opera on Tap, and others. Jamie is also the Cantor/Choir Director for House for All Sinners and Saints Lutheran Church. He has sung many genres including Jazz, Pop, and in leading roles in Opera and Musical Theater. Jamie also co-wrote and performed music for the Buntport Theater’s children’s show TRUNKS!
Jamie has been teaching private lessons for over six years. He loves to sing and loves to teach people of all ages.



Ethan Lorentz


Colorado native Ethan Lorentz is a classically trained guitarist who has won awards as both a soloist and as a chamber musician.  These have included top prize in the 2016 Denver Guitar Competition and 1st prize in the Shark Tank Entrepreneur Competition.  He has also been a prizewinner in the Lamont Solo Honors Competition, the 2014 Denver Guitar Competition and has three times been in winning ensembles in the Lamont Chamber Honors Competition.

Ethan graduated Magna cum Laude from the University of Denver’s Lamont School of Music, where he studied with renowned virtuosos Ricardo Iznaola and Jonathan Leathwood. While at Lamont Ethan received multiple honors and awards in recognition of his artistic and academic achievements, including an Outstanding Recital award and Distinction in the Major of music.  He was also named both the Outstanding Graduating Guitarist and the Outstanding Undergraduate in Academic Achievement. Currently Ethan is continuing his music studies by pursuing a Master’s of Music at the Lamont School of Music were he was awarded a Graduate Teaching Assistantship in music theory.


Derek Sawyer


Derek is a professional percussionist with dual degrees in Percussion Performance and Mechanical Engineering from CU-Boulder. He plays orchestral percussion and timpani regularly with orchestras across the front range, including the Fort Collins Symphony, Cheyenne Symphony, and Colorado Symphony. While at CU, he won the Undergraduate Honors Concerto Competition and performed the Creston Marimba Concerto with the University Orchestra in 2014. He also enjoys playing and teaching drum set, Latin and Brazilian Music, and Piano. Derek also loves living in Colorado and can be found climbing, skiing, and hiking in his free time.