GPT-6 Astra writes passing tones on the Bach Benchmark, a first
At Extra High effort, Astra's four-part chorale has no voice-leading errors and includes a Neapolitan sixth chord, and it is the first model to write passing tones on this benchmark.
GPT-6 Astra has the best result yet on the Bach Benchmark. Its chorale contains no voice-leading errors, and its harmonic palette is sophisticated enough to include a Neapolitan sixth chord. More importantly, it is the first model to ever write passing tones on this benchmark, a significant leap in musical understanding. Extra High effort. Prompt below: “In LilyPond (version 2.24), write a 4-part chorale in the style of Bach, 3/4 time, G minor. Use two staves -- soprano and alto on the top staff, tenor and bass on the bottom staff. Respond with only the code block.”
This post quotes another post: x.com/aug5thmusic/status/2079334917796946032
GPT-6 Astra writes a violin sonata in the Baroque style. This is the best result I’ve seen on this benchmark by far. Extra High effort, one-shot prompt, first attempt: