The founders of :|Musicators are teaches devoted to digital education.
Besides helping music educators in schools we are developing this free web app
which helps choirs memorizing musical pieces.
As a choir leader add new recordings and upload audio files! Trim it to sections and give them as tasks for your choir!
As a choir member listen and practice sections of music and indicate your improvements on a scale. Keep an eye on your progress and see how well do you know the pieces.
As a choir leader track the knowledge of your choir members!