The Eustis Middle School Band Program provides students with an instrumental music education of the highest quality. 

At EMS the band program consists of Concert Band at three levels. The Beginner band consists of mostly sixth grade students with those seventh and eighth graders in their first year of band. The Intermediate band includes seventh and eight grade students in their second year of practice. The Advanced band is quality musicians in eighth and seventh grade able to demonstrate the highest proficiency on their selected instrument. The Concert Bands meet daily during the school day.

The Advanced Band participates in the annual District 19 Florida Bandmasters Association Music Performance Assessment in which they are consistently rated superior.

The Marching Mustang Band is a combined three level Marching Band consisting of all members of the band program. The Marching Mustangs perform at several local parades and Universal Studios Orlando annually. 

The Steel Drum Ensemble consists of five different groups of steel drums and a rhythm section. The pounded out playing surface, or pan, of each drums contain notes that have literally been pounded thin to sound a specific pitch. All drums except the basses can play two full octaves. This ensemble is by audition and rehearses Monday mornings from 8:00-8:55. The Steel Drum Ensemble meets once a week outside of the school day.

Mustang Jazz II is the second jazz ensemble at EMS. Concentrating on jazz fundamentals, this audition group rehearses on Tuesday morning from 8:00-8:55. Mustang Jazz II meets once a week outside of the school day.

The Eustis Mustang Jazz Ensemble, an award winning ensemble, is an advanced group playing throughout the county and state. This year the EMS Mustang Jazz Ensemble has been invited to play at a NBA Orlando Magic game. They will also be playing for the Florida Music Educators Association’s Annual Clinic Conference in Tampa. The Mustang Jazz will also be traveling to Myrtle Beach, SC for a national competition in April. They have won first place trophies at Gatlinburg, TN in 2004 and first place plus grand champion trophies at Williamsburg, VA in 2005. The Jazz Ensemble meets daily during the school day.

The Mustang Jazz ensemble participates in the annual District 19 Florida Bandmasters Association Music Performance Assessment in which they are consistently rated superior.

Students have the opportunity to participate in local parades, public concerts, community events, and exciting field trips. Students can also compete at district solo and ensemble music performance assessments and for positions in State, District, and County Honor Bands.