Music notation: About limitations and extensions of common music notation

The Music Notation Project. Formerly known as the Music Notation Modernization Association (MNMA).

"The Music Notation Project seeks to raise awareness of the disadvantages of traditional music notation, to explore alternative music notation systems, and to provide resources for the wider consideration and use of these alternatives. We hope our efforts will help make reading, writing, and playing music more enjoyable and easier to learn."

Symbolic Extensions and its corruption of Music by Barton McLean (1981).

Dan Lindgren developed a new musical notation system called Nydana Notation. It simplifies reading of musical notation for keyboard instruments.

ICON - The Alternative Music Notation

Simplified Music Notation was designed to remove the need to remember the key signature and accidentals. Based on traditional, 5-line staff notation, sharps and flats are given distinctively shaped noteheads. The key signature is still there, but the musician plays each note as it appears on the page without having to mentally adjust for it, or for accidentals.