A song is finished when it can leave your room. The demo is how it leaves: a fixed recording that carries the idea to a bandmate, a producer, a label or another artist.
What a demo is for
Musicians use demos as quick sketches for their band or arranger, as notes to themselves while writing, or to send a song to an artist who might record it. A band may send one to labels hoping to be signed and make a full album. Songwriters' and publishers' demos are often minimal: an acoustic guitar or piano and a voice. Elton John and Donovan both learned the studio early by recording publishers' demos.
Finished enough
| Check | Question |
|---|---|
| Form | Can you write its parts as letters (V, C, B) without hesitating? |
| Hook | Is there one idea a listener would hum after one play? |
| Lyrics | Does every verse say something new, and the chorus the same thing each time? |
| Melody | Does each phrase land on a chord note, and the last one on home? |
| Demo | Could a stranger learn it from one voice and one instrument? |
The last row matters most. If the song works on guitar or piano and a voice, an arrangement can only add to it. If it does not, more instruments will hide the problem, not fix it.
What comes next
From here, the Studio section covers recording your demo at home: start with Record anywhere.
Sources
Every date, name, tempo and origin on this page comes from these pages, read on 2026-10-24.