GPT-6 Astra reportedly aces Bach chorale benchmark, first model to write passing tones
yacineMTB · x · 2026-09-05
An unverified post claims "GPT-6 Astra" achieved the best result yet on the Bach Benchmark: its four-part chorale contains no voice-leading errors, employs a Neapolitan sixth chord, and is reportedly the first model ever to write passing tones — a claimed leap in musical understanding. The test used Extra High effort with a LilyPond 2.24 prompt requesting a G-minor, 3/4 Bach-style chorale. Caveat: no official GPT-6 exists, so treat with skepticism.
Related event: GPT-6 Astra Reportedly Passes Bach Benchmark with Zero Voice-Leading Errors(2 posts)→
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