Essential Elements Interactive (EEi) is a mobile companion app for the Essential Elements Method Books 1, 2, or 3, designed to work with the Essential Elements for Band and Essential Elements for Strings Method Books. This app is an online resource that supplements and enhances EE's curriculum, allowing teachers, students, and parents to access their EEi accounts. The app has a variety of features that make it perfect for beginning instrumentalists, such as multiple audio accompaniment tracks, instructional videos, and supplemental handouts and worksheets.

With EEi for Android, users can record themselves via their Android device and upload and share recordings via the EEi cloud. The app also has tempo control, allowing users to slow down audio speed for practice. Additionally, students can view and share assignments and materials from their teacher.

However, it is essential to note that an internet connection and an EEi teacher, student, or parent account are required to use this app. Accounts can be created using purchased Essential Elements Teacher and Student Method Books (Books 1, 2, or 3). Overall, EEi is a fantastic app for musical beginners, offering a wide range of resources and tools to enhance their learning experience.