Many alternative music notation systems highlight one of these two pitch patterns. They represent two different approaches to designing an alternative notation system.

On the rationale for using solid and hollow noteheads to indicate pitch rather than duration.

An in-depth look at how interval relationships are obscured in traditional music notation.

Clearly a music notation system should make it easy to identify individual notes. This tutorial discusses why it is also important to make it easy to identify intervals as well.

Shows how alternative notation systems can improve upon traditional notation’s representation of interval relationships.

Considers a passage of music that requires a complex key signature and many accidentals in traditional music notation, and shows how alternative music notations can make it clearer and easier to learn.

A more advanced tutorial that compares the representation of enharmonically equivalent notes in traditional notation and on a chromatic staff. Considers the reasons for differentiating between them.

Historical overview and discussion of various numerical systems for music notation.