Description:
This app allows for the production and proof reading of 4-part
harmonies in the style of Bach on an interactive iPad surface. The user will
be able to input each line of a SATB chorale into our scrollable staff, and
when they are finished, an algorithm will check for mistakes in the
composition. These errors include parallel fifths and parallel octaves, among
others.
Instructions and Controls:
Create a harmony by assembling each part onto the staff, which is
done by first selecting the part (SATB), and then touching the staff where
you want the note to be placed (A note can be deleted by a double tap). The
notes, all quarter notes, will snap onto the staff. Once all parts have been
compiled, pressing the “check” button will give the user feedback on the
harmony’s accuracy.