Hmm.. When working with a I vi IV V in G, it tells me that a substitution of Bm7 for Em produces a ii-V-I in C. It does nothing of the sort! Now a Bm7-5 -> F -> Am is a 2-5 in C, but that's not what it's working with.
> it tells me that a substitution of Bm7 for Em produces a ii-V-I in C.
That's because it's using GPT-4. Which means it just makes stuff up, and you can't rely on it to tell the truth. It's a fun tool to see possibly novel output, but you can never rely on it to be accurate or correct.
This is true. I have come across other instances where the explanations are incorrect. The app is not ready for prime time, but fine-tuned models can improve this.
You don't need to fine tune GPT4 for it. A tiny in comparison model trained specifically on chords would do much better for creativity and the explanations could be generated without any AI.
That's because it's using GPT-4. Which means it just makes stuff up, and you can't rely on it to tell the truth. It's a fun tool to see possibly novel output, but you can never rely on it to be accurate or correct.