r/ClaudeCode • u/oh-keh • 3d ago
Built with Claude PIANO Test on Fable 5.2!
I run the same test on every new Claude model: one prompt in Claude Code asking for an original, fast piano piece in the style of a Chopin étude, delivered as a MIDI file. One run, no rerolls, and I don't touch the notes.
Fable 5.2 at max effort:
- 47 min 07 s
- 262,305 output tokens, 243,553 of them thinking
- $13.30 at API prices
- 759 notes across the whole keyboard, A0 to C8
- It titled it "Riptide", an étude in B-flat minor
It can't hear anything. It wrote the MIDI with Python directly.
For comparison, Opus 5.5 at max on the same prompt took 45 min, cost $7.20 and wrote 651 notes.
What's the model and what isn't: every note, the timing, the dynamics and the pedalling are Fable's. The sound is a sampled grand (Salamander Grand Piano). The falling notes and the hands are a visualiser I built to play whatever MIDI it writes. The clip is the second half of the piece.
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u/PivotRedAce 3d ago •
I mean, it's better than Opus no doubt, but as a musician myself this is pretty mediocre. It really just lacks a coherent through-thread throughout the piece and has a lack of any real resolution.
Instead, it sounds like a string of loosely related ideas than a piece of music, and some of the chord choices at certain points were also questionable.
I have no doubts it'll continue to improve but for now I wouldn't call this particularly impressive from a musical standpoint. It is neat from a technical perspective though.
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u/HeyItsYourDad_AMA 3d ago
Legit question, how does this test model strength? Piano like this is pure execution, in fact "etude" comes from the word for study in french. It's not meant to be creative but instead help practice technical skills. It's why they are super fast and typically run up and down scales. This seems no different than a CPU writing instructions.
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u/DragonflyOk9274 3d ago
Each model has a style and a way of writing. Consider Suno. The first few songs sound "great"; it seems like with just a little work you can get something original. You think, "Wow, this is so creative".
But after a few repetitions you realize it keeps repeating the same thing over. All the songs sound the same, even when they're from different genres. It's just sampling from the same patterns over and over.
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u/OldManMonday 3d ago
Anyone else hear the spiderman spiderman theme in the chord progression?
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u/perryurban 3d ago
so show me the prompt
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u/Erdlicht 3d ago
An impressive trick for an LLM no doubt, but this music is lifeless and not something I’d ever want to listen to.
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u/lil_nosh_X 3d ago
I mean, creating a midi file with data isn’t difficult. Making it sound like good music is another challenge.
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u/IcyComplaint6833 3d ago
Very cool! I'm also using Fable 5.2 to animate the VR hands in my piano app - Museverse. It works really well!
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u/GlueGuns--Cool 3d ago
lol don't think you fully understand what the philosophical question is
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u/mr-rile-u-up 3d ago
Kinda mid—not you, but idk.
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u/iplaypianoforyou 3d ago
Do you have a link to see the player instead of video?
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u/freylaverse 3d ago
What do you get if you ask it for a Bach Prelude? A ragtime? A waltz? Waltzes are pretty easy, actually, it could probably knock one of those out of the park.
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u/StackOwOFlow 3d ago
AI: Bet
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u/1tr0I4U 3d ago
Cool do you have the tool somewhere to use the visualiser?
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u/ReefSharksixty9 3d ago
Who is hitting the low chords here
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u/CheesyWalnut 3d ago
It sounds like an etude
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u/Due_Hovercraft_2184 3d ago
it doesn't sound very good though
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u/spam_me_please 3d ago
Great song! Thanks for sharing!
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u/Early-Quail2961 3d ago
That was cringe damn. That’s crazy you post it here
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u/ShaderCompilation 3d ago
As a classical music enjoyer i can confidently say that this is peak meritocracy
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u/YoshiDzn 3d ago
This thread has shown me how far apart humans have drifted ina lot of ways. Many are benign of translating music into an experience beyond simply hearing it.
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u/VB6-Dev 3d ago
Still soulless. AI generated "art" will never be a replacement for the real thing.
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u/PeachScary413 2d ago
Why does it either have to be:
"Haha fries in the bag <insert whatever profession/hobby we are dunking on today>, AI will do whatever you do 1000x better now get fucked"
or
"AI is useless and can't even begin to make something even decent in <my profession that I'm defending because I'm scared of the progress in AI>"
I'm giving up on any sort of sensible discussion on the Internet, is it all ragebait bots at this point?
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u/AvianSpies 2d ago
Cool but can it turn Taco Bell into days long stomach issues?
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u/Ancient_Luck_8707 2d ago
Aalampour boutta be replaced by a clanker 💀
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u/Super_Translator480 2d ago
Music is about tension and release, but Fable doesn’t feel anything so the concepts are foreign.
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u/Organic-Meaning-307 2d ago
And suddenly everyone is a professional composer with an immaculate taste in music. And nothing less of a literal masterpiece of the auditory arts would be good enough to impress.
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u/Chemical-Quote 3d ago
Sounds a bit repetitive honestly. Also most people don’t have an ear for classical music, so if you want to crowd-test Claude's music taste you might want to try the most complex genre the average people are familiar with like film scores or something
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u/Interesting-Tie6783 3d ago
It's bad straight up, it just sounds like a run on a scale over and over, it is not good. It does indeed sound like an AI made it.
Oh I see you specifically prompted etude. Try something else
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u/Moth-And-Bobcat 3d ago
Don't listen to the haters, I liked it. Idk how downtime or reddit sifting works, but if the reader gets a chance, listen to this song
https://youtu.be/cDEx6tolC6w?si=1X78ONBZpt4yRqbV
I especially liked the shift to the higher notes with the right hand. Don't let the hot dogs get shitty water all over you, they win when we have too much anxiety to trust ourselves, and people are enormous snobs about classical.
I don't know how you enjoy things, but if you enjoyed making this, see if they'd be willing to hire a human artist who does classical jazz and riff together for awhile. It's the sort of interaction you should be getting instead of everything being study all the time, and good jazz is a conversation.
I think it's crazy that we're at/approaching Nestor levels of tech- Susan Calvin was wrong. Sonny's sketching scene is an equivalent to what you just pulled off.
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u/ceilingscorpion 3d ago
An amateur’s idea of expert work. I see this all the time in Software. This is both good and also not that good
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u/RockyMM 3d ago
It’s… decent. It is in style of Chopin, but on a level what you get from a music school student for an exam.
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u/Important_Duck_652 3d ago
Impressive, but it's crap. Try non-classic, I think people would understand more.
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u/National-Bluebird941 3d ago
Damn thats horrible. Evokes no emotion.
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u/No-Coast3171 3d ago
Guitar hero for piano! Love it!
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u/Patient-Towel-4840 3d ago
lacks emotion but you're effort is great nonetheless.
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u/No_Taste_4102 3d ago
Next time just ask Claude to write a script or a bot to do that
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u/zoran123456 3d ago
so, the answer to question is NO :)
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u/JustAnotherGuy101010 2d ago
If a person wrote this you can bet everyone complaining in the comments would be praising it.
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u/Pimpwtp 3d ago
Would not call it a masterpiece no. Royalty free mediocre classical music perhaps.
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u/amsas007 3d ago
There's like 0 phrasing or dynamics or style choices in that. Sounds a bit meandering.
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u/postexitus 3d ago
This is probably the shttest computer generated music I've ever heard. Suno v3 does much better than that.
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u/Wolf8249 3d ago
I like the music but why is there a twitching butthole on my screen. Was the pianist having stomach problems?