Transpose by key doesn't calculate interval correctly
Submitted by David Bolton on January 29, 2010 - 12:27am.
| Project: | MuseScore |
| Component: | Code |
| Category: | bug report |
| Priority: | normal |
| Assigned: | Unassigned |
| Status: | closed |
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Description
Steps to reproduce bug
1. Open promenade demo
2. Notes > Transpose...
3. Transpose by key to "Cb major / Ab minor"
Expected behavior: Notes should transpose up a minor second.
Actual behavior: Notes actually transpose up an augmented unison.
Discussion: The distance between the original key ("Bb major / G minor") and the new key ("Cb major / Ab minor") is 1 letter (Bb to Cb) and 1 semitone. The interval table shows that a "change of note name" of 1 and a "semitone" of 1 corresponds with a "Minor Second".
MuseScore version: r. 2649
(Operating System: Windows XP)
Looks better now in rev. 2654 but probably needs more testing.
Transpose to "Cb major / Ab minor" works.
However transpose to "C major / A minor" has similar problems. Expected behavior: notes should transpose up a major second (i.e. 1 diatonic letter, 2 chromatic semitones). Actual behavior: double sharps added to each note (i.e. 0 diatonic letters, 2 chromatic semitones).
There was some confusion about transposing up/down. Rev. 2662 gives it another try. The two above examples now look good as far as i can see.
Seems to be fixed. (Tested using r. 2666 nightly).
Automatically closed -- issue fixed for 2 weeks with no activity.