I wrote down your instructions, Ivan, and tried them. I tried changing a new little tune from C to G. The first question is, is that 8 semitones or 7? I tried 8 and got G#,A#,C,C# D# E. (Obviously not in G) "Audit accidentals" did nothing. Then I told it to go down one semitone (G# to G etc) and it popped in a key signature of six sharps, then turned the notes into an equally meaningless mishmash.

I am beginning to wonder if anyone there plays an instrument.