Colliding articulation with beam

[Jean-Alexis Montignies]

Hi,

Should I submit the following as a bug?
As a work around I would like to add more space between the chords and the 
system. How can I achieve that?

You will note that articulation are placed on top. This is a request from my 
notation class teacher, is there's a way to do that automatically: something 
like /dynamicsUp ?

Greetings!

Jean-Alexis



% problem with articulations colliding beam
% It's quite hard to find a shorter example, for instance if you remove the 
chord exceptions or some bars, the collision doesn't take place

\version "2.13.9"
\include "english.ly"

customChordExceptions = 
{   
    <c e g bf>- "7" 
    <c ef g bf>- "m7"
    <c e g bf af'>- \markup { 7 \hspace #1 \super \bracket "♭13"}
}

newChordExceptionList = #(append 
     (sequential-music-to-chord-exceptions customChordExceptions #t) 
     ignatzekExceptions) 

\book {
   \score {
        <<
            \new ChordNames 
                \chordmode {
                    \set chordNameExceptions = #newChordExceptionList 
                    f1 g2:m7 c:7 f g:m7 c:m7 f:7.13-
                    \repeat unfold 10 { g2:m7 } 
                }
            \new Voice
                \relative c' {
                     f8 e f c^^ r4 a'8 gs | a c,^^ r e ~ e g f e | g f a bf a f 
g ef | r d'4.^^ r8 df4 f,8 | \break
                     \repeat unfold 5 { a8 c,^^ r4 b'8 c,^^ r4 } 
            }
        >>
    }
}