Write basic music scores with notes, rests, time signatures, and playback using Web Audio API.
This is a score editor for short, basic pieces: you place notes and rests on a staff, set a time signature, and the page plays the result back through the Web Audio API, so the sound is synthesized tones rather than recordings. The thing people most often get wrong is beat arithmetic: a 4/4 measure holds exactly four quarter notes' worth of time, rests consume those beats just like notes do, and a half note plus two quarters fits while three quarters does not. The feature set is basic - notes, rests, time signatures, and playback. Everything runs locally in the browser; nothing is uploaded.
The time signature sets the measure's beat budget: the top number is beats per measure, the bottom number is which note value counts as one beat. In 4/4 the bottom 4 means a quarter note is one beat, so a measure holds four quarters, or one whole note, or two halves, or eight eighths. Notes and rests come in these same durations, and each measure must total exactly the budget.
Playback is synthesized in the browser through the Web Audio API rather than played from recordings: each note becomes a tone at the pitch its position on the staff indicates, held for that note's duration, in order from left to right at a steady tempo. Browsers only allow audio after a user gesture, so sound starts when you trigger the play control and not before.
Not here. The tool covers editing and in-browser playback only; export and printing are not part of its feature set, so there is no file to take to another program. If you need MIDI or print, you would have to recreate the score in dedicated notation software.
Because the Web Audio API generates the tones inside the browser at play time instead of using recordings or instrument samples. You hear the correct pitch and duration for each note, but no instrument timbre and no expressive nuance. That is enough to check whether the score is right, and it is what keeps the tool simple and instant.
The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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