Degree alterations -transpositions.
I want to understand how the decision is made behind this switch as I get unintended results.
1) Do you mean by "Keep Degree Alterations" in Diatonic transpositions that all non-diatonic notes will be made diatonic during the transposition ?
2a) If so, how do you decide how the altered note will be incorporated diatonically. E.g. if the non diatonic note is say a flatV, how do you decide to make it a V or a IV ? ) Just based on equal spacing principle ?
2b) If not then what do you do during "Keep Degree Alterations"
I just want to see what this switch actually does so I can understand unexpected alterations I get sometimes.