# Noteheads supplement (U+EEA0–U+EEDF)

Supplementary to Noteheads

Glyph | Description | Glyph | Description
--- | --- | --- | ---
 | U+EEA0 noteheadNancarrowSine Sine notehead (Nancarrow) |  | U+EEA1 noteheadCowellThirdNoteSeriesWhole 2/3 note (third note series, Cowell)
 | U+EEA2 noteheadCowellThirdNoteSeriesHalf 1/3 note (third note series, Cowell) |  | U+EEA3 noteheadCowellThirdNoteSeriesBlack 1/6 note (third note series, Cowell)
 | U+EEA4 noteheadCowellFifthNoteSeriesWhole 4/5 note (fifth note series, Cowell) |  | U+EEA5 noteheadCowellFifthNoteSeriesHalf 2/5 note (fifth note series, Cowell)
 | U+EEA6 noteheadCowellFifthNoteSeriesBlack 1/5 note (fifth note series, Cowell) |  | U+EEA7 noteheadCowellSeventhNoteSeriesWhole 4/7 note (seventh note series, Cowell)
 | U+EEA8 noteheadCowellSeventhNoteSeriesHalf 2/7 note (seventh note series, Cowell) |  | U+EEA9 noteheadCowellSeventhNoteSeriesBlack 1/7 note (seventh note series, Cowell)
 | U+EEAA noteheadCowellNinthNoteSeriesWhole 8/9 note (ninth note series, Cowell) |  | U+EEAB noteheadCowellNinthNoteSeriesHalf 4/9 note (ninth note series, Cowell)
 | U+EEAC noteheadCowellNinthNoteSeriesBlack 2/9 note (ninth note series, Cowell) |  | U+EEAD noteheadCowellEleventhNoteSeriesWhole 8/11 note (eleventh note series, Cowell)
 | U+EEAE noteheadCowellEleventhNoteSeriesHalf 4/11 note (eleventh note series, Cowell) |  | U+EEAF noteheadCowellEleventhSeriesBlack 2/11 note (eleventh note series, Cowell)
 | U+EEB0 noteheadCowellThirteenthNoteSeriesWhole 8/13 note (thirteenth note series, Cowell) |  | U+EEB1 noteheadCowellThirteenthNoteSeriesHalf 4/13 note (thirteenth note series, Cowell)
 | U+EEB2 noteheadCowellThirteenthNoteSeriesBlack 2/13 note (thirteenth note series, Cowell) |  | U+EEB3 noteheadCowellFifteenthNoteSeriesWhole 8/15 note (fifteenth note series, Cowell)
 | U+EEB4 noteheadCowellFifteenthNoteSeriesHalf 4/15 note (fifteenth note series, Cowell) |  | U+EEB5 noteheadCowellFifteenthNoteSeriesBlack 2/15 note (fifteenth note series, Cowell)

## Implementation notes

The so-called "sine" notehead was invented by Conlon Nancarrow as a more compact representation of a note five 8ths (quavers) or 16ths (semiquavers) in duration. It does not appear that Nancarrow ever gave this notehead a formal name, so we have named it after its resemblance to a sine wave.

This range also includes noteheads invented by Henry Cowell, first published in his book New Musical Resources (1930). Cowell suggested using these noteheads to denote tuplet relationships without writing explicit tuplets.