Add interval to selection - Frescobaldi snippet

[aeoleandust]

Hi there!

I am looking for a Frescobaldi snippet/functionality (Pyhthon script I
assume) that would add an interval to a selected note (or selection of
notes/chords). Something similar to the transpose function that is
integrated, but adding the transposition to existing music to form a chord.

For example {c4 d e} with an added octave above would become {<c c'>4 <d d'>
<e e'>}
or added major 3rd {<c c'>4} become {<c c' e'>4} etc.
Other intervals like thirds would be slightly more complex in terms of
enharmonic spelling, but that shouldn't be a problem, given that various
transpose functions already exist in Frescobaldi.

My Python skills are extremely limited unfortunately. Does anyone know how
to achieve this (or does a snippet already exist)? 

Cheers
Huddie



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