Board of Executive Directors

Drue Bullington, President

Drue Bullington teaches elemental music and movement at Brownstown and J.E. Fritz Elementary Schools at Conestoga Valley School District in Lancaster, PA. Drue has a rich and varied background in choral music as a conductor of children’s choral music, private studio instructor and professional choral singer. He is twice a graduate of West Chester University of Pennsylvania having received a B.S. in Music Education and a M.M. in Music Education with a certification in Orff Schulwerk. He has done extensive post graduate study as well through masterclasses and an apprenticeship program at George Mason University.

Drue has taught in several Orff Schulwerk Certification programs around the U.S. and offers numerous professional development and workshop sessions on elemental music and movement through the Orff Schulwerk approach, incorporating technology, and integrating the soprano ukulele into the K-12 music classroom.

Kristin Smith, Vice President

Kristin Smith is the music specialist at Grace Episcopal Day School in Kensington, MD. She is active as an elemental music and movement educator and clinician in the region of her home chapter of the American Orff-Schulwerk Association, the Middle Atlantic chapter.

A native of Pennsylvania, Kristin received her bachelor’s degrees in music education and flute performance from Lebanon Valley College. She completed her Orff Schulwerk certification through the University of the Arts, and the Master Class in Orff Schulwerk through George Mason University.

In addition to serving on the ACEMM board, she is an advisory board member for the Maryland General Music Teachers’ Association of MMEA. Kristin is an AOSA approved teacher educator for recorder and movement pedagogy. In addition to teaching, she performs as a flutist and maintains a private lesson studio for flute and piano.

Lissa Ray, Secretary

Lissa Ray

Lissa Ray is in her 9th year of “retirement” after a teaching full time for thirty years. Her teaching experience spans preschool the to adults. She is now teaching music to children three to six years old at Mercy Montessori Center. She holds a Bachelor’s Degree from Western Michigan University and a Master’s Degree from Indiana University.  She has completed her Orff Certification as well as Master Classes and Orff Curriculum. She attended the summer course at the Orff Institut in Salzburg, Austria. Lissa is a Movement and Recorder Instructor for OS Teacher Training.

Lissa has been active member of the Greater Cincinnati American Orff-Schulwerk Chapter since 1987.  She is currently one of the Local Conference Chairs for the 2018 AOSA Professional Development Conference in Cincinnati. She has served on nationally on the AOSA National Board of Trustees as a Region Representative and member of Technology, Advocacy, and 50th Anniversary Conference Committees. She also served on the Board of Directors for the Cincinnati Children’s Choir and taught Musicianship Through Movement at the CCC Summer Festival for many years. Lissa has presented at several AOSA national conferences and chapter workshops.

Lissa is the Handbell, Youth, and Children’s Music Director at Northminster Presbyterian Church. She is a flute player and she rings handbells in the Cincinnati Collaborative Ringing Project, of which she is a founding member.

David Thaxton, Treasurer

David Thaxton is from Sparks, Nevada where is currently in his 24th year teaching Elementary music to pre-K through 6th grade. He studied under Elizabeth Gilpatrick, and Judith Cole at Colorado State University, UNC Greeley and the University of Massachusetts Amherst where he received all three levels of Orff Certification, as well as studying under Kay Lehto at the University of Nevada, Las Vegas to receive certification as an AOSA approved Levels Course Educator.

David teaches Level I pedagogy for the University of Nevada, Reno Summer Orff Course as well as the Orff Level I pedagogy and Level II Recorder for the San Diego Summer Orff Course. David has presented workshops and clinics at local, state and national levels and presents to Orff chapters throughout the country. He has also served as President of the Sierra Nevada Chapter of AOSA where he was co-founder of the Sierra Nevada Orff Festival. At the national level, he has served on the Editorial Board of The Echo Journal of the American Orff Schulwerk Association and the monthly online publication, Reverberations.

He has been the Creative Director and Lead Clinician for the Four Corners Young Musicians Summer Camp in Durango, Colorado since 2015. David was also recently awarded the “Spotlight Educator Award”  for the Winter of 2017 from the American Center for Elemental Music and Movement (ACEMM).

ACEMM Board of Directors

Kate Bright

Kate Bright is a music teacher at Lincoln Charter School in York, PA, where she teaches approximately 700 kindergarten through fifth grade students. She is past-president of the Greater Baltimore Area Orff Chapter and the Philadelphia Area Orff Chapter, and has presented at the America Orff Schulwerk Association’s national conference. In 2015 she received the Spotlight award from the American Center for Elemental Music and Movement, and she currently serves on the board of both ACEMM and the Harrisburg Area Contra Dance Association.

Donna Fleetwood

Donna Fleetwood is the Director of the Orff Schulwerk Certification Program at George Mason University where she completed her studies. She has also taught in Orff Certification courses throughout the U.S.

Donna has teaching experience at the Bilingual Montessori School of Paris, the Oak Knoll School in New Jersey, St. Albans School for Boys in D.C., and 23 years in the public schools of Prince William County, VA.

An active American Orff-Schulwerk Association national conference and chapter presenter, Donna has presented internationally in France, the U.K., Hong Kong and South Korea, and completed studies at the Orff Institute in Salzburg, Austria. She served nationally on AOSA’s Board of Trustees and has chaired AOSA’s International Outreach Committee, as well as the Curriculum Oversight and Review Subcommittee (CORS). She has written for the Orff ECHO, Reverberations and the AOSA blog, Sharing Wisdom. Locally, Donna served as president of the Middle Atlantic Chapter– AOSA.

She currently resides in Central Virginia where she enjoys (for the most part) the renovation process of an old tavern where she hopes her family and friends will be able to gather.


Casey Goryeb

Casey Goryeb is currently the Pre-K through 5th Grade Music Teacher, 5th Grade Chorus Director, and 4th and 5th Grade Community Choir Director at both Catherine A. Dwyer and Dennis B. O’Brien Elementary Schools in Rockaway Township, NJ.

She attended Lebanon Valley College where she received a Bachelor of Science in Music Education and  Bachelor of the Arts in Music (Flute Performance). Casey then earned a Master’s Degree in Educational Leadership Instruction from The College of New Jersey. She received her Orff Schulwerk Certification and completed the Orff Curriculum Course through The University of the Arts, and The Master Class in Orff Schulwerk through George Mason University.

An active member of her local chapter, Casey has served on the Executive Board as Treasurer and Newsletter Editor and is currently the Vice President of the Northern New Jersey Orff Schulwerk Association (NNJOSA). She is also is a member and clinician for the New Jersey School Music Association (NJSMA) Elementary Music Division. In her spare time, Casey performs as a vocalist and ukulele player in the duo, The Two Ukes.

Crystal Pridmore

Crystal Pridmore has been teaching music for 12 years as a private voice instructor, secondary choir director, early childhood music specialist, and PreK-8 general music teacher.

She currently runs the general music, choral, and strings program for PreK-6th grade students at Finney Elementary School.

She holds a BA in Music Education and MA in Teaching from Point Loma Nazarene University, and California Single Subject Teaching Credential in Music. She proudly serves as a member of the MUSICALumni Auxiliary board for her alma mater. She actively serves throughout the community as a singer and choir member, and frequently collaborates with other musicians in various capacities.

In addition, Crystal has completed level certification in Orff-Schulwerk, and serves as the San Diego American Orff Schulwerk Association Chapter Vice President

Lisa M. Sempsey

Lisa Sempsey graduated with honors from Millersville University of Pennsylvania with a Bachelors of Science in Music Education in May 2001. She completed her Kodály Levels through West Chester University of Pennsylvania and New England Conservatory.  She has also completed her Orff-Schulwerk Levels through the University of the Arts in collaboration with Villanova University’s graduate summer music education programs and George Mason University. Lisa also holds a master’s degree in Leadership for Teaching and Learning from Millersville University.

Lisa is a clinician and workshop presenter who loves to share and collaborate with her colleagues.  She has presented workshops and sessions covering topics including classroom management, choral reading sessions, technology in the music classroom, movement and music curricular connections, Kodaly Pedagogy in the modern elementary music class, curriculum development and lesson planning, and Orff-Schulwerk elements in K-6 music classes.

Lisa has taught kindergarten through sixth grade general music, elementary choruses, as well as elementary and middle school strings in Lower Dauphin and Conestoga Valley School Districts, as well as been the Artistic Director and Prelude Choir Director for the Children’s Choir of Lancaster from 2005-2012.  Currently, Lisa teaches kindergarten through sixth grade general music, chorus, and Orff, Drum & Strum Ensemble in Columbia Borough School District. She also serves as the K-12 Art & Music Curriculum Coordinator for the district.  

Lisa lives in Lititz with her husband and son, enjoys cooking and baking, spending time with her family, and generally taxiing around her teenage son.