Suno

Suno makes complete songs, with vocals, instruments and structure, from a short text description of the style you want, or from lyrics you write yourself. You can extend a track, try variations and download the result. It is one of the most widely used AI music generators.

For a working band, its most practical uses are quick idea sketches, placeholder music for a video, or hearing how a lyric might sit in a style you don't usually play. Before you release anything made with it, read Suno's terms for your plan: they set out who owns the output and whether commercial use is allowed. Check your distributor's rules on AI-generated music too, since some ask you to disclose it or limit what they accept.