Adam Hill

Executive Director

Adam D. Hill is a music educator and percussionist in the Chicagoland area. He received a B.A. in Music Education from VanderCook College of Music with an emphasis in percussion under the instruction of Kevin Lepper and Dr. Charlie Menghini. At Romeoville High School in Romeoville, Illinois, Hill is the director of percussion, assistant band director, and teaches jazz band, music technology, music theory, and guitar. Adam is also a member of the music faculty at University of St. Francis in the Music Technology program. He founded Pioneer Indoor, and is the Executive director of Pí Percussion Inc. an independent marching percussion ensemble and has lead the ensemble to multiple WGI medals as their Executive Director. Hill spent ten seasons as a member of the Chicago Bears drumline and is currently the director of the Chicago Bulls “Stampede“ Drumline. He was a member of Pioneer Drum and Bugle Corps and spent several seasons as their percussion coordinator, caption head, and arranger. Hill placed within the top ten for snare drum solo contest in Drum Corp International, Drum Corps Midwest, and PASIC. In 2002, he placed second in the DCI snare drum solo competition. Hill received the “Dr. Rosanne Rosenthal Excellence in Teaching Award” from Vandercook College of Music, the “Natalie Stukas Hearing Conservation Award”, and named a Pillar of the Community in Valley View School District. He has also performed at large music festivals such as Lollapalooza and North Coast Music Festival. Adam Hill is an active music arranger, judge, clinician, and performer in the midwest. He proudly endorses Innovative Percussion, Evans, TAMA Drums, Sabian cymbals, Gon Bops Percussion, and Etymotic ear protection. 


Steven Vonderohe

Ensemble Director


Steven Vonderohe is a musician, educator, and composer in the southwest suburbs of Chicago who is devoted to sharing and advancing the art of percussion music. Since receiving his Bachelors degree in music education from VanderCook College of Music, he has taught percussion to students ranging from Elementary school to college level. This will be Steven’s third year as an educator for Pi Percussion. Currently, he teaches private lessons and front ensemble at Romeoville High School as well as the front ensemble and drum line at Lockport Township High School. Some past experiences include four years with Minooka Community High School’s Indoor Percussion Ensemble, two summers with Arlington Heights District 25 middle school band camp, and one year of private lessons in Chicago through VanderCook’s community program. As a performer, he has played with orchestras, chamber ensembles, jazz combos, pop/rock bands, drum lines, choirs, and musical productions. Steven is a seasoned performer in the Drum Corps activity, where he spent five seasons playing marimba with the Blue Stars Drum & Bugle Corps. He is also an alumni of the Pi Percussion organization, where he was a member of the ensemble from 2011-2015. 

Christian Perez

Ensemble Director


Cory Simonich


Cory went to Minooka High School and spent his early performing years with their WGI group. He then went on to march Blue Stars, Pioneer Indoor, and Rhythm X. After aging out, he taught at Minooka and Shadow DBC.  He spends his spare time doing arts and crafts, as well as playing disc golf. Currently, he is the percussion director at Joliet West High School. 

Mike Mosgo

Designer/ Visual Coordinator

Mike is excited to spend another winter with Pi Percussion. Mike is an educator, visual designer, and cymbal technician living in the suburbs of Chicago but originally from Cincinnati, OH. 

Mike began his marching career in 2004 with Colerain High School Marching Band and Indoor Percussion. Since then, he has performed with several percussion ensembles in the midwest from 2004-2011. Including Mo)xie Audio Theatre, Elements Indoor Percussion, West Athens Percussion, and Redline Percussion. Mike has taught several cymbal lines and percussion ensembles throughout the midwest. Including Sycamore High School, Tates Creek Indoor Ensemble, Cincinnati Tradition, Pioneer Drum and Bugle Corps, Cavaliers Indoor, and Pi Percussion


Chuck Willard

Battery Coordinator

Chuck is a percussion specialist from the Chicagoland area. He holds a Bachelor of Arts degree in Music Education and a Masters degree in Percussion Performance from Illinois State University. Chuck began his marching experience with Green Thunder Percussion/Cavaliers Indoor Percussion (2011-2018) and went on to march with groups such as Pioneer Drum and Bugle Corps (2012-2015) and Spirit of Atlanta (2016-2017). His teaching experience includes: Percussion Caption Head of Normal Marching Band, Normal Percussion Ensemble Instructor, Battery technician at Bloomington Indoor Percussion/Marching Band, and Percussion Caption Head for the Lighthouse Brigade of Racine. He currently resides in Normal, Illinois where he is the Instructor/arranger for the Big Red Marching Machine “Pulse” Drumline. 

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Jacob Okrzesik

Jacob is an active percussionist and educator throughout the Chicago area. He has taught multiple high school drumlines in the Chicago area including: Alan B Shepard, Benet Academy, Evergreen Park, LockPort Township, and Romeoville. Jacob earned his Bachelor of Music Education degree from VanderCook College of Music where he studied under Kevin Lepper, Bret Kuhn, and Dr. James Yakas. Jacob is currently finishing up his Masters in Percussion Performance from Illinois State University, studying under Dr. David Collier and Dr. Ben Stiers. He was also a graduate assistant where he instructed the drumline for the Big Red Marching Machine (2019-2020). Jacob is an alum of the Pi Percussion organization where played in the snareline from 2014-2016. He joined the staff at Pi in 2018 as a snare tech and is excited to jump into his new role as Battery Coordinator for the 2022 season.

Battery Coordinator

Eddie Gomez


Eddie is excited to be starting his first year on staff with Pi Percussion. He started his marching career in 2013 with the Providence Catholic Marching Band and NEXUS Indoor Percussion (2013-2015). He then went on to perform with various ensembles including, The Colt Cadets (2015-2016), Pioneer Indoor (2017-2018), Pi Percussion (2019), Chicago Bulls Stampede (2018-2021), and Legends (2018-2019). Eddie has gone on to teach different programs in the central Illinois area such as Brother Rice/Mother McAuley High Schools, Romeoville High School, A.A. Stagg High School, Minooka Indoor Percussion, and most recently The Lincoln-Way Community Marching Band. Outside of drumming, Eddie is pursuing his Bachelor of Science in Nursing at the University of St. Francis.


Nicholas Martiniak



Baryl Brandt

Bass Drums

Baryl Brandt is an active percussionist and alum of Pi Percussion from the Chicagoland area.  Starting in high school, he has marched with Minooka Indoor Percussion (2016-2017), Pioneer Indoor (2018), and Pi Percussion (2019-2020).  In addition to marching, he has also taught a number of ensembles, including Minooka Community High School, Bloomington High School, Streator High School, and Plainfield South High School.  Having recently completed his bachelor degree in both Percussion Performance and Music Business, Baryl is currently pursuing his masters degree in Percussion Performance from Illinois State University.

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Esmeralda Montesinos


Esmeralda began her marching years with Minooka High School marching band and their indoor percussion group (2011-2015). Since then she has gone on to perform with various groups including Legends DBC (2014), Pioneer Indoor (2016-2018), Pi Percussion (2019), and Veritas (2020). In addition to marching, she has gone on to teach cymbals at Minooka HS, Romeoville HS, and more recently at Northern Illinois University. Outside of teaching, Esmeralda works at a non-profit in the South-West side of Chicago as an Immigrant Rights Organizer.


Jake Parker


Nathaniel Parson


Nathaniel Parson is an aspiring music educator in the Central Illinois area.


After marching mellophone at Bloomington High School for four seasons, Nathaniel joined the Bluecoats Drum and Bugle Corps from Canton, OH and received immediate praise for his visual prowess. He was named the Visual Rookie of the Year award for his efforts in 2018, and quickly began teaching with Bloomington High School as Visual Caption Head. By 2019, Nathaniel had been sought out to teach, design, and choreograph with high school marching bands in several cities in the Central Illinois area including Bloomington, Normal, Eureka, Deer-Creek, Mackinaw, Stanford, and Metamora. Nathaniel’s primary Visual Instructors have been Willie Veenstra, Kevin Stahl, Samia Mooney, Aylin Vural, Jarrod Huntley, Mike Fanning, Kyle Nealy, and Jason “Paco” Nuñes.


Nathaniel is currently finishing degrees in Instrumental Music Education, French Horn Performance, and Piano Performance at Illinois State University in hopes of becoming a well-rounded educator for his future students.


Alex Vonderohe