How to Sing Harmony is an Android education and reference app that aims to bring back the long-standing tradition of singing in four-part harmony. Developed by BurnSoftware, this app makes it easy and fun for users to learn how to sing these songs in parts again. With over 70 total songs included, users can choose from hymns, Christmas and Easter songs, and patriotic songs.

The app features an easy-to-use interface that allows users to select a song to practice by choosing it from the menu. Users can mute or unmute any part by tapping the S (soprano), A (alto), T (tenor), or B (bass) and isolate each part so that they can easily learn a part individually. Additionally, users can follow along with traditional music notation, adjust the tempo at any time while practicing, and pause, rewind, and retry a segment they just can’t get.