A ChatGPT plugin

Expand your musical vocabulary.
One idea at a time.

Ask ChatGPT for a lick, a groove, an exercise or a whole arrangement, for guitar, piano, horns, strings, choir or the full band. See it written out properly, play it back, and keep the ones worth practicing.

Show me a C Lydian etude for guitar, with a pad and bass to play along
Music BlockRendered notation

Here's an 8-bar C Lydian etude for guitar, with a string pad and bass underneath. The recurring F♯ is the raised fourth that gives Lydian its colour. Press play, slow it down with the tempo slider, or mute the guitar and play it yourself.

What it writes

Guitar, bass and ukulele
Standard notation with TAB underneath. Acoustic, electric, jazz and distorted guitar, 7 and 8 strings, 4 to 6-string bass. Hammer-ons, slides, bends, vibrato and palm mutes.
Alternate tunings
Drop D, DADGAD, open G, half-step down and more, or any tuning you spell out. The TAB and the playback both follow it.
Piano and keys
Both hands on a grand staff: piano, electric piano and organ. Comping, lines over shell voicings, exercises.
Horns, strings and voices
Trumpet, trombone, saxes, flute, clarinet, violin, cello, SATB choir and more. Transposing instruments are written at their written pitch.
Drums
Kit grooves on a percussion staff: kick, snare, hi-hat, ride, toms and crash, on their own or behind the band.
Whole arrangements
Up to eight parts in one example, with chord symbols, key signatures and swing or shuffle feel. Backing parts can play without taking up the page.

How it works

01
Ask
Ask for a lick, an exercise, a groove or a full arrangement in plain words. Instrument, key, tempo and length make it sharper.
02
Checked, then engraved
Every bar is checked before you see it: rhythm, what each instrument can play, how the parts sit on the chords. Then it is engraved inline, with TAB for fretted instruments.
03
Listen and mix
Play it back at 50–150% of the tempo. Mute, solo or turn down any part to play along with the rest.
04
Keep it going
Save it to your library, share a link, export PDF, PNG, MusicXML or MIDI, or open it in Music Block Studio to keep editing.

FAQ

How do I start using it?

Install the Music Block plugin in ChatGPT; after that ChatGPT calls it whenever you ask for notation.

Do I have to say “use Music Block”?

No. Ask your music question normally. If you get ASCII tab back, say “render that with Music Block”.

Which instruments does it write for?

Guitars (acoustic, electric, jazz, overdrive, distortion), bass and ukulele with TAB; piano, electric piano and organ on a grand staff; violin, viola, cello, double bass and string section; trumpet, trombone, French horn and tuba; flute, piccolo, clarinet, oboe, bassoon, recorder and saxophones; solo voice and SATB choir; and drum kit.

How many instruments can play at once?

Up to eight parts per example: a lick over a comping track, a rock band, a jazz quintet, a string quartet, a choir. Parts you only need to hear (a click-track groove, comping under a solo) can stay off the page and still play.

Can it write for drop D or a 7-string?

Yes. Ask for drop D, D standard, DADGAD, open D, E, G or C, drop C or B, or spell out your own tuning; 7- and 8-string guitar, 5- and 6-string bass, and low-G or baritone ukulele work too. The TAB is written in that tuning and plays back in it.

Does it handle swing?

Yes. Swing, sixteenth swing and shuffle are written as straight notes with the feel marked above the staff, the way charts are written, and played back with the lilt.

Is what it writes actually playable?

Each example is checked before it is shown. Every bar has to add up and parts that play together have to agree on the chord, or ChatGPT rewrites it first. Anything hard to play (a stretch on the neck, a note out of range, a wind part with nowhere to breathe) comes back to ChatGPT as a note so it can fix it.

What kind of prompt works best?

Be specific: instrument, style, key, tempo and length. “A 4-bar swing blues head in F for trumpet and tenor sax, with piano, bass and drums” gets you closer than “a jazz tune”.

Can I control the parts during playback?

Every part has its own mute, solo and volume control, so you can drop the lead and play along, or bring the bass up to hear how the line sits on the changes. The tempo slider runs from 50 to 150% of the written tempo.

Can I export it?

Yes: PDF and PNG for printing, MusicXML for Guitar Pro, MuseScore, Sibelius, Finale or Dorico, and MIDI for your DAW.

Can I edit the notation after it renders?

Ask ChatGPT for the change and it re-renders. To edit it yourself, press Edit in Studio on the score: it opens as a project in Music Block Studio, where you can ask the AI for changes, add instruments and keep arranging.

Can I keep the ones I like?

Hit Save. The first save opens a one-time sign-in (Google or an emailed link) that links your ChatGPT account; every save after that is one click, and they all land in your library.

Can I share what it renders?

Yes. Share gives you a link that replays the render in the browser. Anyone with the link can open it; it isn’t listed publicly.

Does it work in the ChatGPT mobile app?

Yes. It works in every ChatGPT client: web, desktop and mobile.

Why does the playback sound synthetic?

It’s a built-in soundfont, meant for hearing the idea clearly rather than as a produced recording.

Nothing plays on my phone. What now?

Check the ring/silent switch, then tap play again; iOS only lets audio start from a tap.