Need help with usage of breve

[Dave Seidel]

Hi all. I am building a score with a lot of tied whole notes, and I'd like to make it more concise by using breves. However, I am clearly not understanding how to use them properly.

Example using ties:

\version "2.22.2"
\score {
    \new Staff \relative {
        \clef treble
        \new Voice \relative {
            \time 6/1 \partial 1 f'1 ~
            f1 fis1 ~ fis1 a1 ~ a1 b1
        }
    }
}

Which produces the expected result:

Here's a version using breves according to my understanding based on the docs (http://lilypond.org/doc/v2.24/Documentation/notation/writing-rhythms#durations):

\version "2.22.2"
\score {
    \new Staff \relative {
        \clef treble
        \new Voice \relative {
            \time 6/1 \partial 1 f'1 ~
            f1 fis1\breve a1\breve b1
        }
    }
}

Which produces an unexpected result (repeated notes, barline in wrong place):

Please tell me what I'm doing wrong.

Thanks,

Dave