Real-demand verdict
Nice-to-have
It replaces the high-friction old behavior of hiring a songwriter, buying beats, or learning production, so demand is genuine; but song generation is largely one-off entertainment, making repeat purchase and retention uncertain, hence want rather than real.
How it makes money
End consumers pay to generate songs, billed through Stripe as subscriptions or per-use credits; exact pricing tiers are not disclosed in the source.
What old behavior it replaces
Hiring a songwriter, buying stock beats, or learning music production yourself