Re: a lot of accidentals. how do I notate them?

[Nick Payne]

On 02/03/13 09:44, Sarah k Alawami wrote:

Hey thanks for your explanation. it is helping a bit. how ever I think it is still complaining about this measure

d4 e! g4. f8 e

If I recall though it is 

d, e natural, g, f, e flat. so Do I need to mark it as an e flat at the end of that measure, the error I get is unexpected '!' and I think it is that measure it's having a connection about.

You need to write the actual pitch that will be sounding, and ignore how the key signature affects how it appears on the page. If it's an E-flat, you need to write ees (or ef if using english language). And an E in the key signature of C minor will display with a natural sign in front of it without needing the exclamation mark.

The prelude has already been coded in Lilypond format on the Mutopia Project web site. Might be useful for you to look at that. See http://www.mutopiaproject.org/cgibin/make-table.cgi?Composer=ChopinFF, which has Op 28 No 20 on the page (http://www.mutopiaproject.org/ftp/ChopinFF/O28/Chop-28-20/Chop-28-20.ly).