The staff has three solid lines alternating with three dashed lines. The lowest solid line represents C. Traditional rhythmic notation is used. The standard staff has six lines spanning one octave, three solid and three dashed, half of the two octave staff shown above.
Source: Directory of Music Notation Proposals, section/page: 10/3, 11/4, 13/3
Earliest Documentation: 1883
Similar notations: 6-6 Trigram by Richard Parncutt