Key signature placement bug in 0.1.73

[Peter Chubb]

Hi,
        If I use the clef "G^8", the key signature appears an octave
        low.

        Here's a small piece to show the problem:
        (BTW, \transpose seems to get the octave wrong.
        After the \transpose c'' (up two octaves) I'd expect to be
        able to type
                ees
        to get the e flat a minor tenth above middle c.  Instead I
        have to type ees'.
        I'd prefer it if \transpose took a signed number of semitones
        to transpose as argument, rather than a note).
        

\score {
       \type Staff \melodic {
       \clef "G^8";
       \key bes ees aes;
       \meter 2/2;
       \transpose c'' {
              ees'1 \bar "|."; }
       }
}