Write without friction
Mouse, keyboard and touch entry with exact rhythmic placement, chords, articulations and dynamics.
Music, clearly imagined
From the first note
to the full orchestra.
Kestrello is a focused composition studio for writing, hearing and preparing music in the browser.
Follow the score
Notation should disappear into the music.
A serious score editor with the immediacy of an instrument.
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A complete musical workflow
Compose at the speed
you can hear it.
Hear the orchestra
Sample-based playback interprets instruments, dynamics, slurs and articulations while you compose.
Prepare every part
Publication-ready scores, extracted parts, page control and MusicXML exchange stay in one local-first workspace.
Open score library
Read the music.
Then change it.
Five public-domain works become interactive lessons. Study the history and theory, hear Kestrello’s playback, then open the same score in the editor.
01 Hear scoreSymphony No. 9 · fourth movement
Ode to Joy
Ludwig van BeethovenHistory · theory · interactive score
02 Hear scoreBagatelle in A minor · WoO 59
Für Elise
Ludwig van BeethovenHistory · theory · interactive score03 Hear scoreSerenade in G major · K. 525
Eine kleine Nachtmusik
Wolfgang Amadeus MozartHistory · theory · interactive score
04 Hear scoreThe Well-Tempered Clavier, Book I · BWV 846
Prelude in C major
Johann Sebastian BachHistory · theory · interactive score05 Hear score24 Preludes · Op. 28, No. 4