robin loops wrote:When a note in a measure has an accidental (sharp or flat) the following notes in the measure with the same value are sharped/flatted until the end of the measure or until a natural sign cancels the sharp/flat. So it's only necessary to write it once.
I didn't know this rule, I am sorry.
I only knew that this happens in case of the key signature.
Now I have consulted it and already I have it clear. And it affects all the octaves (of the same note) inside the same measure.
I have to continue studying it.
Thank you very much for the help and excuse me for the inconveniences.
You are doing a great great work.