Music notation
Native single-voice music notation. Parses a minimal ABC-style syntax (note letters with optional accidentals, durations, bar lines) and engraves it on a treble or bass clef with key signature, time signature, and a basic note / rest set (whole, half, quarter, eighth, sixteenth). Suitable for music theory teaching, melody jotting, and lecture slides; not a full engraver — chords, beams, slurs, and complex articulations will come in a follow-up.

In the same space
Most users come to Music notation from abcjs (basic) or Lilypond (basic). flowss runs this engine in the browser — no install, shareable via URL, exportable to PNG / SVG / PDF / source.
Syntax at a glance
clef treble
key C
meter 4/4
notes: C C G G A A G2Paste this in the Studio code pane to see Music notation render live. The full grammar is at the upstream-docs link above.
Sample templates
All 9 →Classic nursery melody — single voice, treble clef.
Ascending C major scale.
A simple bluesy line over four bars.
Bass clef quarter notes outlining a I-IV-V-I.
The complete eight-bar melody in C major and 4/4, written with quarter, half and whole notes only — every bar holds exactly four beats, which the engine checks — so it doubles as a first note-reading exercise on the treble staff (E, D, C, G around the bottom of the stave).
The first six bars of the traditional round in F major and 4/4: the opening call twice, the rising answer to the half-note C, and the running eighth-note phrase. B♭ is written on every B because the engine draws the key name rather than a key signature, and each bar sums to four beats.
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