1.5.38 tested..

[Heikki Johannes Junes]

I have a bug in my soup (gcc 2.96, guile 1.4)...

\score {
  \context PianoStaff <
    \notes \context Staff = upper { a }
    \notes \context Staff = lower { <cis gis> }
  >
}

Traceback ...

Calculating column
positions... warning: Too many clashing notecolumns.  Ignoring them.
[2]
warning: Could not find line breaking that satisfies constraints.
programming error: Infinity or NaN encountered (Continuing; cross thumbs)
programming error: Infinity or NaN encountered (Continuing; cross thumbs)
paper output to `test2.tex'...

... the rest was ok. Look at the PS-output. It was weard, at least when
compiled in my computer. 

--
  Heikki Junes