ChoraLine is a multimedia application designed for choral singers, offering rehearsal recordings for singers in choirs and choral societies. With the guidance of a narrator, users can learn specific notes for their SATB voice parts, ensuring they sing at the perfect pitch in time with the music. The app allows users to highlight words and notes in their vocal scores, follow bar numbers, and utilize features like the 'loop' function and playback speed control to master complex passages.

For the most popular choral works, ChoraLine offers the option to hear choir parts sung by a professional singer. The app provides rehearsal recordings for a wide range of classical works from composers like Bach, Beethoven, Brahms, Verdi, and more, making it a valuable tool for choral singers looking to enhance their performance.