Interval identification is one of the most basic skills in a musician's aural development. There are many tools (technological and otherwise) to help students practice, and all of them have benefits. I needed a tool that was easy to use and did not require complex licensing. So, I wrote one. has no options, which simplifies its interface. It simply presents a quasi-random series of audible prompts for the user to identify. In addition to the percentage of correct answers, it also keeps track of the latest "streak" of correct answers in a row. Additionally, the software learns which intervals each user struggles with, and presents them more often.

There is no imposed limit on the exercise, so students may practice indefinitely. Teachers may assign a number of attempts, a number of correct answers, and/or a minimum number of correct answers in a row. After completing an exercise, students can click "Share score" to receive a unique code/URL to submit to with their instructor. is 100% free to use.

Dr. Benjamin Coy serves as the brass professor at South Texas College, where he also directs the symphonic band and teaches music theory. He is a regular clinician and has presented lectures on pedagogical topics at conferences throughout the country, including the 2014 International Trombone Festival.

As a trombonist, Dr. Coy plays with the Valley Symphony Orchestra, and has previously held positions in the Springfield Symphony, Orchestra Iowa, and the Waterloo/Cedar Falls Symphony. He has also performed with numerous other orchestras throughout the midwest and shared the stage with notable musicians from Lang Lang to Carol Jantsch. He has also played for a wide variety of critically-acclaimed opera and theater productions, including the national tour of Hairspray. Dr. Coy maintains a diverse performance calendar including classic rock, jazz, and chamber music.

Dr. Coy is committed to the growth of brass repertoire, and his publications are available through Kagarice Brass Editions and Cherry Classics Music. His current project is to expand the spectrum of pieces appropriate for collegiate concerto competitions through the orchestration of music previously only available with piano accompaniment.

Dr. Coy earned his doctorate in trombone performance and pedagogy at The Ohio State University. He previously studied in Chicago, earning his master's degree at Northwestern University and his bachelor's at the Chicago College of Performing Arts. His primary teachers were Chicago Symphony musicians Jay Friedman and Michael Mulcahy.