What a harmonic seed is
A harmonic seed is a few seconds of audio that plays your chord progression — nothing more. It's the "seed" you give an AI generator to grow from.
It exists because of how generators like Suno work. They ignore chord names in the text prompt entirely and shape their output around the harmony in the audio you upload. The seed is simply how you hand them that harmony in a form they can hear. Reach for one whenever you want the AI to stay on a specific progression rather than make up its own.