Circular staves

[Andrew Bernard]

Just checking - you can't make circular staves with notes in lilypond, 
can you? I know you can do nice circle of fifths diagrams as per an LSR 
example, but circular staves are way out of scope, aren't they?

This came up in the Dorico forum and several users assert with no 
evidence or examples that lilypond can, so I wanted to check my view.

Andrew